72208040

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{78487}}^1$

素因数の和:78521

約数の個数: 32

約数和(自身を含む): 169534080

約数和(自身を除く): 97326040

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 115, 184, 230, 460, 920, 78487, 156974, 313948, 392435, 627896, 784870, 1569740, 1805201, 3139480, 3610402, 7220804, 9026005, 14441608, 18052010, 36104020, 72208040]

約数ペア:

[(1, 72208040), (2, 36104020), (4, 18052010), (5, 14441608), (8, 9026005), (10, 7220804), (20, 3610402), (23, 3139480), (40, 1805201), (46, 1569740), (92, 784870), (115, 627896), (184, 392435), (230, 313948), (460, 156974), (920, 78487)]