28167490

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{389}}^1\times {\mathrm{557}}^1$

素因数の和:966

約数の個数: 32

約数和(自身を含む): 54840240

約数和(自身を除く): 26672750

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 389, 557, 778, 1114, 1945, 2785, 3890, 5057, 5570, 7241, 10114, 14482, 25285, 36205, 50570, 72410, 216673, 433346, 1083365, 2166730, 2816749, 5633498, 14083745, 28167490]

約数ペア:

[(1, 28167490), (2, 14083745), (5, 5633498), (10, 2816749), (13, 2166730), (26, 1083365), (65, 433346), (130, 216673), (389, 72410), (557, 50570), (778, 36205), (1114, 25285), (1945, 14482), (2785, 10114), (3890, 7241), (5057, 5570)]