31256880

素因数分解:

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

素因数の和:243

約数の個数: 160

約数和(自身を含む): 105421824

約数和(自身を除く): 74164944

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 17, 20, 24, 30, 34, 40, 47, 48, 51, 60, 68, 80, 85, 94, 102, 120, 136, 141, 163, 170, 188, 204, 235, 240, 255, 272, 282, 326, 340, 376, 408, 470, 489, 510, 564, 652, 680, 705, 752, 799, 815, 816, 940, 978, 1020, 1128, 1304, 1360, 1410, 1598, 1630, 1880, 1956, 2040, 2256, 2397, 2445, 2608, 2771, 2820, 3196, 3260, 3760, 3912, 3995, 4080, 4794, 4890, 5542, 5640, 6392, 6520, 7661, 7824, 7990, 8313, 9588, 9780, 11084, 11280, 11985, 12784, 13040, 13855, 15322, 15980, 16626, 19176, 19560, 22168, 22983, 23970, 27710, 30644, 31960, 33252, 38305, 38352, 39120, 41565, 44336, 45966, 47940, 55420, 61288, 63920, 66504, 76610, 83130, 91932, 95880, 110840, 114915, 122576, 130237, 133008, 153220, 166260, 183864, 191760, 221680, 229830, 260474, 306440, 332520, 367728, 390711, 459660, 520948, 612880, 651185, 665040, 781422, 919320, 1041896, 1302370, 1562844, 1838640, 1953555, 2083792, 2604740, 3125688, 3907110, 5209480, 6251376, 7814220, 10418960, 15628440, 31256880]

約数ペア:

[(1, 31256880), (2, 15628440), (3, 10418960), (4, 7814220), (5, 6251376), (6, 5209480), (8, 3907110), (10, 3125688), (12, 2604740), (15, 2083792), (16, 1953555), (17, 1838640), (20, 1562844), (24, 1302370), (30, 1041896), (34, 919320), (40, 781422), (47, 665040), (48, 651185), (51, 612880), (60, 520948), (68, 459660), (80, 390711), (85, 367728), (94, 332520), (102, 306440), (120, 260474), (136, 229830), (141, 221680), (163, 191760), (170, 183864), (188, 166260), (204, 153220), (235, 133008), (240, 130237), (255, 122576), (272, 114915), (282, 110840), (326, 95880), (340, 91932), (376, 83130), (408, 76610), (470, 66504), (489, 63920), (510, 61288), (564, 55420), (652, 47940), (680, 45966), (705, 44336), (752, 41565), (799, 39120), (815, 38352), (816, 38305), (940, 33252), (978, 31960), (1020, 30644), (1128, 27710), (1304, 23970), (1360, 22983), (1410, 22168), (1598, 19560), (1630, 19176), (1880, 16626), (1956, 15980), (2040, 15322), (2256, 13855), (2397, 13040), (2445, 12784), (2608, 11985), (2771, 11280), (2820, 11084), (3196, 9780), (3260, 9588), (3760, 8313), (3912, 7990), (3995, 7824), (4080, 7661), (4794, 6520), (4890, 6392), (5542, 5640)]