31579020

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{389}}^1$

素因数の和:456

約数の個数: 144

約数和(自身を含む): 107321760

約数和(自身を除く): 75742740

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 30, 33, 36, 41, 44, 45, 55, 60, 66, 82, 90, 99, 110, 123, 132, 164, 165, 180, 198, 205, 220, 246, 330, 369, 389, 396, 410, 451, 492, 495, 615, 660, 738, 778, 820, 902, 990, 1167, 1230, 1353, 1476, 1556, 1804, 1845, 1945, 1980, 2255, 2334, 2460, 2706, 3501, 3690, 3890, 4059, 4279, 4510, 4668, 5412, 5835, 6765, 7002, 7380, 7780, 8118, 8558, 9020, 11670, 12837, 13530, 14004, 15949, 16236, 17116, 17505, 20295, 21395, 23340, 25674, 27060, 31898, 35010, 38511, 40590, 42790, 47847, 51348, 63796, 64185, 70020, 77022, 79745, 81180, 85580, 95694, 128370, 143541, 154044, 159490, 175439, 191388, 192555, 239235, 256740, 287082, 318980, 350878, 385110, 478470, 526317, 574164, 701756, 717705, 770220, 877195, 956940, 1052634, 1435410, 1578951, 1754390, 2105268, 2631585, 2870820, 3157902, 3508780, 5263170, 6315804, 7894755, 10526340, 15789510, 31579020]

約数ペア:

[(1, 31579020), (2, 15789510), (3, 10526340), (4, 7894755), (5, 6315804), (6, 5263170), (9, 3508780), (10, 3157902), (11, 2870820), (12, 2631585), (15, 2105268), (18, 1754390), (20, 1578951), (22, 1435410), (30, 1052634), (33, 956940), (36, 877195), (41, 770220), (44, 717705), (45, 701756), (55, 574164), (60, 526317), (66, 478470), (82, 385110), (90, 350878), (99, 318980), (110, 287082), (123, 256740), (132, 239235), (164, 192555), (165, 191388), (180, 175439), (198, 159490), (205, 154044), (220, 143541), (246, 128370), (330, 95694), (369, 85580), (389, 81180), (396, 79745), (410, 77022), (451, 70020), (492, 64185), (495, 63796), (615, 51348), (660, 47847), (738, 42790), (778, 40590), (820, 38511), (902, 35010), (990, 31898), (1167, 27060), (1230, 25674), (1353, 23340), (1476, 21395), (1556, 20295), (1804, 17505), (1845, 17116), (1945, 16236), (1980, 15949), (2255, 14004), (2334, 13530), (2460, 12837), (2706, 11670), (3501, 9020), (3690, 8558), (3890, 8118), (4059, 7780), (4279, 7380), (4510, 7002), (4668, 6765), (5412, 5835)]