156689480

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{64217}}^1$

素因数の和:64289

約数の個数: 32

約数和(自身を含む): 358336440

約数和(自身を除く): 201646960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 1220, 2440, 64217, 128434, 256868, 321085, 513736, 642170, 1284340, 2568680, 3917237, 7834474, 15668948, 19586185, 31337896, 39172370, 78344740, 156689480]

約数ペア:

[(1, 156689480), (2, 78344740), (4, 39172370), (5, 31337896), (8, 19586185), (10, 15668948), (20, 7834474), (40, 3917237), (61, 2568680), (122, 1284340), (244, 642170), (305, 513736), (488, 321085), (610, 256868), (1220, 128434), (2440, 64217)]