12737960

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{79}}^1\times {\mathrm{139}}^1$

素因数の和:258

約数の個数: 64

約数和(自身を含む): 30240000

約数和(自身を除く): 17502040

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 58, 79, 116, 139, 145, 158, 232, 278, 290, 316, 395, 556, 580, 632, 695, 790, 1112, 1160, 1390, 1580, 2291, 2780, 3160, 4031, 4582, 5560, 8062, 9164, 10981, 11455, 16124, 18328, 20155, 21962, 22910, 32248, 40310, 43924, 45820, 54905, 80620, 87848, 91640, 109810, 161240, 219620, 318449, 439240, 636898, 1273796, 1592245, 2547592, 3184490, 6368980, 12737960]

約数ペア:

[(1, 12737960), (2, 6368980), (4, 3184490), (5, 2547592), (8, 1592245), (10, 1273796), (20, 636898), (29, 439240), (40, 318449), (58, 219620), (79, 161240), (116, 109810), (139, 91640), (145, 87848), (158, 80620), (232, 54905), (278, 45820), (290, 43924), (316, 40310), (395, 32248), (556, 22910), (580, 21962), (632, 20155), (695, 18328), (790, 16124), (1112, 11455), (1160, 10981), (1390, 9164), (1580, 8062), (2291, 5560), (2780, 4582), (3160, 4031)]