16407920

素因数分解:

$2^4\times 5^1\times {\mathrm{317}}^1\times {\mathrm{647}}^1$

素因数の和:977

約数の個数: 40

約数和(自身を含む): 38327904

約数和(自身を除く): 21919984

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 317, 634, 647, 1268, 1294, 1585, 2536, 2588, 3170, 3235, 5072, 5176, 6340, 6470, 10352, 12680, 12940, 25360, 25880, 51760, 205099, 410198, 820396, 1025495, 1640792, 2050990, 3281584, 4101980, 8203960, 16407920]

約数ペア:

[(1, 16407920), (2, 8203960), (4, 4101980), (5, 3281584), (8, 2050990), (10, 1640792), (16, 1025495), (20, 820396), (40, 410198), (80, 205099), (317, 51760), (634, 25880), (647, 25360), (1268, 12940), (1294, 12680), (1585, 10352), (2536, 6470), (2588, 6340), (3170, 5176), (3235, 5072)]