66508720

素因数分解:

$2^4\times 5^1\times {\mathrm{139}}^1\times {\mathrm{5981}}^1$

素因数の和:6133

約数の個数: 40

約数和(自身を含む): 155771280

約数和(自身を除く): 89262560

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 139, 278, 556, 695, 1112, 1390, 2224, 2780, 5560, 5981, 11120, 11962, 23924, 29905, 47848, 59810, 95696, 119620, 239240, 478480, 831359, 1662718, 3325436, 4156795, 6650872, 8313590, 13301744, 16627180, 33254360, 66508720]

約数ペア:

[(1, 66508720), (2, 33254360), (4, 16627180), (5, 13301744), (8, 8313590), (10, 6650872), (16, 4156795), (20, 3325436), (40, 1662718), (80, 831359), (139, 478480), (278, 239240), (556, 119620), (695, 95696), (1112, 59810), (1390, 47848), (2224, 29905), (2780, 23924), (5560, 11962), (5981, 11120)]