68879960

素因数分解:

$2^3\times 5^1\times {\mathrm{631}}^1\times {\mathrm{2729}}^1$

素因数の和:3371

約数の個数: 32

約数和(自身を含む): 155282400

約数和(自身を除く): 86402440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 631, 1262, 2524, 2729, 3155, 5048, 5458, 6310, 10916, 12620, 13645, 21832, 25240, 27290, 54580, 109160, 1721999, 3443998, 6887996, 8609995, 13775992, 17219990, 34439980, 68879960]

約数ペア:

[(1, 68879960), (2, 34439980), (4, 17219990), (5, 13775992), (8, 8609995), (10, 6887996), (20, 3443998), (40, 1721999), (631, 109160), (1262, 54580), (2524, 27290), (2729, 25240), (3155, 21832), (5048, 13645), (5458, 12620), (6310, 10916)]