66807640

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{72617}}^1$

素因数の和:72651

約数の個数: 32

約数和(自身を含む): 156854880

約数和(自身を除く): 90047240

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 115, 184, 230, 460, 920, 72617, 145234, 290468, 363085, 580936, 726170, 1452340, 1670191, 2904680, 3340382, 6680764, 8350955, 13361528, 16701910, 33403820, 66807640]

約数ペア:

[(1, 66807640), (2, 33403820), (4, 16701910), (5, 13361528), (8, 8350955), (10, 6680764), (20, 3340382), (23, 2904680), (40, 1670191), (46, 1452340), (92, 726170), (115, 580936), (184, 363085), (230, 290468), (460, 145234), (920, 72617)]