19898950

素因数分解:

$2^1\times 5^2\times {\mathrm{149}}^1\times {\mathrm{2671}}^1$

素因数の和:2832

約数の個数: 24

約数和(自身を含む): 37274400

約数和(自身を除く): 17375450

約数列:

[1, 2, 5, 10, 25, 50, 149, 298, 745, 1490, 2671, 3725, 5342, 7450, 13355, 26710, 66775, 133550, 397979, 795958, 1989895, 3979790, 9949475, 19898950]

約数ペア:

[(1, 19898950), (2, 9949475), (5, 3979790), (10, 1989895), (25, 795958), (50, 397979), (149, 133550), (298, 66775), (745, 26710), (1490, 13355), (2671, 7450), (3725, 5342)]