281311920

素因数分解:

$2^4\times 3^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{163}}^1$

素因数の和:249

約数の個数: 320

約数和(自身を含む): 1054218240

約数和(自身を除く): 772906320

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 17, 18, 20, 24, 27, 30, 34, 36, 40, 45, 47, 48, 51, 54, 60, 68, 72, 80, 85, 90, 94, 102, 108, 120, 135, 136, 141, 144, 153, 163, 170, 180, 188, 204, 216, 235, 240, 255, 270, 272, 282, 306, 326, 340, 360, 376, 408, 423, 432, 459, 470, 489, 510, 540, 564, 612, 652, 680, 705, 720, 752, 765, 799, 815, 816, 846, 918, 940, 978, 1020, 1080, 1128, 1224, 1269, 1304, 1360, 1410, 1467, 1530, 1598, 1630, 1692, 1836, 1880, 1956, 2040, 2115, 2160, 2256, 2295, 2397, 2445, 2448, 2538, 2608, 2771, 2820, 2934, 3060, 3196, 3260, 3384, 3672, 3760, 3912, 3995, 4080, 4230, 4401, 4590, 4794, 4890, 5076, 5542, 5640, 5868, 6120, 6345, 6392, 6520, 6768, 7191, 7335, 7344, 7661, 7824, 7990, 8313, 8460, 8802, 9180, 9588, 9780, 10152, 11084, 11280, 11736, 11985, 12240, 12690, 12784, 13040, 13855, 14382, 14670, 15322, 15980, 16626, 16920, 17604, 18360, 19176, 19560, 20304, 21573, 22005, 22168, 22983, 23472, 23970, 24939, 25380, 27710, 28764, 29340, 30644, 31960, 33252, 33840, 35208, 35955, 36720, 38305, 38352, 39120, 41565, 43146, 44010, 44336, 45966, 47940, 49878, 50760, 55420, 57528, 58680, 61288, 63920, 66504, 68949, 70416, 71910, 74817, 76610, 83130, 86292, 88020, 91932, 95880, 99756, 101520, 107865, 110840, 114915, 115056, 117360, 122576, 124695, 130237, 133008, 137898, 143820, 149634, 153220, 166260, 172584, 176040, 183864, 191760, 199512, 206847, 215730, 221680, 229830, 249390, 260474, 275796, 287640, 299268, 306440, 332520, 344745, 345168, 352080, 367728, 374085, 390711, 399024, 413694, 431460, 459660, 498780, 520948, 551592, 575280, 598536, 612880, 651185, 665040, 689490, 748170, 781422, 827388, 862920, 919320, 997560, 1034235, 1041896, 1103184, 1172133, 1197072, 1302370, 1378980, 1496340, 1562844, 1654776, 1725840, 1838640, 1953555, 1995120, 2068470, 2083792, 2344266, 2604740, 2757960, 2992680, 3125688, 3309552, 3516399, 3907110, 4136940, 4688532, 5209480, 5515920, 5860665, 5985360, 6251376, 7032798, 7814220, 8273880, 9377064, 10418960, 11721330, 14065596, 15628440, 16547760, 17581995, 18754128, 23442660, 28131192, 31256880, 35163990, 46885320, 56262384, 70327980, 93770640, 140655960, 281311920]

約数ペア:

[(1, 281311920), (2, 140655960), (3, 93770640), (4, 70327980), (5, 56262384), (6, 46885320), (8, 35163990), (9, 31256880), (10, 28131192), (12, 23442660), (15, 18754128), (16, 17581995), (17, 16547760), (18, 15628440), (20, 14065596), (24, 11721330), (27, 10418960), (30, 9377064), (34, 8273880), (36, 7814220), (40, 7032798), (45, 6251376), (47, 5985360), (48, 5860665), (51, 5515920), (54, 5209480), (60, 4688532), (68, 4136940), (72, 3907110), (80, 3516399), (85, 3309552), (90, 3125688), (94, 2992680), (102, 2757960), (108, 2604740), (120, 2344266), (135, 2083792), (136, 2068470), (141, 1995120), (144, 1953555), (153, 1838640), (163, 1725840), (170, 1654776), (180, 1562844), (188, 1496340), (204, 1378980), (216, 1302370), (235, 1197072), (240, 1172133), (255, 1103184), (270, 1041896), (272, 1034235), (282, 997560), (306, 919320), (326, 862920), (340, 827388), (360, 781422), (376, 748170), (408, 689490), (423, 665040), (432, 651185), (459, 612880), (470, 598536), (489, 575280), (510, 551592), (540, 520948), (564, 498780), (612, 459660), (652, 431460), (680, 413694), (705, 399024), (720, 390711), (752, 374085), (765, 367728), (799, 352080), (815, 345168), (816, 344745), (846, 332520), (918, 306440), (940, 299268), (978, 287640), (1020, 275796), (1080, 260474), (1128, 249390), (1224, 229830), (1269, 221680), (1304, 215730), (1360, 206847), (1410, 199512), (1467, 191760), (1530, 183864), (1598, 176040), (1630, 172584), (1692, 166260), (1836, 153220), (1880, 149634), (1956, 143820), (2040, 137898), (2115, 133008), (2160, 130237), (2256, 124695), (2295, 122576), (2397, 117360), (2445, 115056), (2448, 114915), (2538, 110840), (2608, 107865), (2771, 101520), (2820, 99756), (2934, 95880), (3060, 91932), (3196, 88020), (3260, 86292), (3384, 83130), (3672, 76610), (3760, 74817), (3912, 71910), (3995, 70416), (4080, 68949), (4230, 66504), (4401, 63920), (4590, 61288), (4794, 58680), (4890, 57528), (5076, 55420), (5542, 50760), (5640, 49878), (5868, 47940), (6120, 45966), (6345, 44336), (6392, 44010), (6520, 43146), (6768, 41565), (7191, 39120), (7335, 38352), (7344, 38305), (7661, 36720), (7824, 35955), (7990, 35208), (8313, 33840), (8460, 33252), (8802, 31960), (9180, 30644), (9588, 29340), (9780, 28764), (10152, 27710), (11084, 25380), (11280, 24939), (11736, 23970), (11985, 23472), (12240, 22983), (12690, 22168), (12784, 22005), (13040, 21573), (13855, 20304), (14382, 19560), (14670, 19176), (15322, 18360), (15980, 17604), (16626, 16920)]