20948760

素因数分解:

$2^3\times 3^3\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{163}}^1$

素因数の和:207

約数の個数: 256

約数和(自身を含む): 85017600

約数和(自身を除く): 64068840

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 17, 18, 20, 21, 24, 27, 28, 30, 34, 35, 36, 40, 42, 45, 51, 54, 56, 60, 63, 68, 70, 72, 84, 85, 90, 102, 105, 108, 119, 120, 126, 135, 136, 140, 153, 163, 168, 170, 180, 189, 204, 210, 216, 238, 252, 255, 270, 280, 306, 315, 326, 340, 357, 360, 378, 408, 420, 459, 476, 489, 504, 510, 540, 595, 612, 630, 652, 680, 714, 756, 765, 815, 840, 918, 945, 952, 978, 1020, 1071, 1080, 1141, 1190, 1224, 1260, 1304, 1428, 1467, 1512, 1530, 1630, 1785, 1836, 1890, 1956, 2040, 2142, 2282, 2295, 2380, 2445, 2520, 2771, 2856, 2934, 3060, 3213, 3260, 3423, 3570, 3672, 3780, 3912, 4284, 4401, 4564, 4590, 4760, 4890, 5355, 5542, 5705, 5868, 6120, 6426, 6520, 6846, 7140, 7335, 7560, 8313, 8568, 8802, 9128, 9180, 9780, 10269, 10710, 11084, 11410, 11736, 12852, 13692, 13855, 14280, 14670, 16065, 16626, 17115, 17604, 18360, 19397, 19560, 20538, 21420, 22005, 22168, 22820, 24939, 25704, 27384, 27710, 29340, 30807, 32130, 33252, 34230, 35208, 38794, 41076, 41565, 42840, 44010, 45640, 49878, 51345, 55420, 58191, 58680, 61614, 64260, 66504, 68460, 74817, 77588, 82152, 83130, 88020, 96985, 99756, 102690, 110840, 116382, 123228, 124695, 128520, 136920, 149634, 154035, 155176, 166260, 174573, 176040, 193970, 199512, 205380, 232764, 246456, 249390, 290955, 299268, 308070, 332520, 349146, 374085, 387940, 410760, 465528, 498780, 523719, 581910, 598536, 616140, 698292, 748170, 775880, 872865, 997560, 1047438, 1163820, 1232280, 1396584, 1496340, 1745730, 2094876, 2327640, 2618595, 2992680, 3491460, 4189752, 5237190, 6982920, 10474380, 20948760]

約数ペア:

[(1, 20948760), (2, 10474380), (3, 6982920), (4, 5237190), (5, 4189752), (6, 3491460), (7, 2992680), (8, 2618595), (9, 2327640), (10, 2094876), (12, 1745730), (14, 1496340), (15, 1396584), (17, 1232280), (18, 1163820), (20, 1047438), (21, 997560), (24, 872865), (27, 775880), (28, 748170), (30, 698292), (34, 616140), (35, 598536), (36, 581910), (40, 523719), (42, 498780), (45, 465528), (51, 410760), (54, 387940), (56, 374085), (60, 349146), (63, 332520), (68, 308070), (70, 299268), (72, 290955), (84, 249390), (85, 246456), (90, 232764), (102, 205380), (105, 199512), (108, 193970), (119, 176040), (120, 174573), (126, 166260), (135, 155176), (136, 154035), (140, 149634), (153, 136920), (163, 128520), (168, 124695), (170, 123228), (180, 116382), (189, 110840), (204, 102690), (210, 99756), (216, 96985), (238, 88020), (252, 83130), (255, 82152), (270, 77588), (280, 74817), (306, 68460), (315, 66504), (326, 64260), (340, 61614), (357, 58680), (360, 58191), (378, 55420), (408, 51345), (420, 49878), (459, 45640), (476, 44010), (489, 42840), (504, 41565), (510, 41076), (540, 38794), (595, 35208), (612, 34230), (630, 33252), (652, 32130), (680, 30807), (714, 29340), (756, 27710), (765, 27384), (815, 25704), (840, 24939), (918, 22820), (945, 22168), (952, 22005), (978, 21420), (1020, 20538), (1071, 19560), (1080, 19397), (1141, 18360), (1190, 17604), (1224, 17115), (1260, 16626), (1304, 16065), (1428, 14670), (1467, 14280), (1512, 13855), (1530, 13692), (1630, 12852), (1785, 11736), (1836, 11410), (1890, 11084), (1956, 10710), (2040, 10269), (2142, 9780), (2282, 9180), (2295, 9128), (2380, 8802), (2445, 8568), (2520, 8313), (2771, 7560), (2856, 7335), (2934, 7140), (3060, 6846), (3213, 6520), (3260, 6426), (3423, 6120), (3570, 5868), (3672, 5705), (3780, 5542), (3912, 5355), (4284, 4890), (4401, 4760), (4564, 4590)]