68623780

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{56249}}^1$

素因数の和:56319

約数の個数: 24

約数和(自身を含む): 146475000

約数和(自身を除く): 77851220

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 305, 610, 1220, 56249, 112498, 224996, 281245, 562490, 1124980, 3431189, 6862378, 13724756, 17155945, 34311890, 68623780]

約数ペア:

[(1, 68623780), (2, 34311890), (4, 17155945), (5, 13724756), (10, 6862378), (20, 3431189), (61, 1124980), (122, 562490), (244, 281245), (305, 224996), (610, 112498), (1220, 56249)]