12489620

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{397}}^1$

素因数の和:441

約数の個数: 72

約数和(自身を含む): 31125192

約数和(自身を除く): 18635572

約数列:

[1, 2, 4, 5, 10, 11, 13, 20, 22, 26, 44, 52, 55, 65, 110, 121, 130, 143, 220, 242, 260, 286, 397, 484, 572, 605, 715, 794, 1210, 1430, 1573, 1588, 1985, 2420, 2860, 3146, 3970, 4367, 5161, 6292, 7865, 7940, 8734, 10322, 15730, 17468, 20644, 21835, 25805, 31460, 43670, 48037, 51610, 56771, 87340, 96074, 103220, 113542, 192148, 227084, 240185, 283855, 480370, 567710, 624481, 960740, 1135420, 1248962, 2497924, 3122405, 6244810, 12489620]

約数ペア:

[(1, 12489620), (2, 6244810), (4, 3122405), (5, 2497924), (10, 1248962), (11, 1135420), (13, 960740), (20, 624481), (22, 567710), (26, 480370), (44, 283855), (52, 240185), (55, 227084), (65, 192148), (110, 113542), (121, 103220), (130, 96074), (143, 87340), (220, 56771), (242, 51610), (260, 48037), (286, 43670), (397, 31460), (484, 25805), (572, 21835), (605, 20644), (715, 17468), (794, 15730), (1210, 10322), (1430, 8734), (1573, 7940), (1588, 7865), (1985, 6292), (2420, 5161), (2860, 4367), (3146, 3970)]