72108880

素因数分解:

$2^4\times 5^1\times {\mathrm{421}}^1\times {\mathrm{2141}}^1$

素因数の和:2575

約数の個数: 40

約数和(自身を含む): 168129864

約数和(自身を除く): 96020984

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 421, 842, 1684, 2105, 2141, 3368, 4210, 4282, 6736, 8420, 8564, 10705, 16840, 17128, 21410, 33680, 34256, 42820, 85640, 171280, 901361, 1802722, 3605444, 4506805, 7210888, 9013610, 14421776, 18027220, 36054440, 72108880]

約数ペア:

[(1, 72108880), (2, 36054440), (4, 18027220), (5, 14421776), (8, 9013610), (10, 7210888), (16, 4506805), (20, 3605444), (40, 1802722), (80, 901361), (421, 171280), (842, 85640), (1684, 42820), (2105, 34256), (2141, 33680), (3368, 21410), (4210, 17128), (4282, 16840), (6736, 10705), (8420, 8564)]