19707400

素因数分解:

$2^3\times 5^2\times {\mathrm{211}}^1\times {\mathrm{467}}^1$

素因数の和:694

約数の個数: 48

約数和(自身を含む): 46135440

約数和(自身を除く): 26428040

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 200, 211, 422, 467, 844, 934, 1055, 1688, 1868, 2110, 2335, 3736, 4220, 4670, 5275, 8440, 9340, 10550, 11675, 18680, 21100, 23350, 42200, 46700, 93400, 98537, 197074, 394148, 492685, 788296, 985370, 1970740, 2463425, 3941480, 4926850, 9853700, 19707400]

約数ペア:

[(1, 19707400), (2, 9853700), (4, 4926850), (5, 3941480), (8, 2463425), (10, 1970740), (20, 985370), (25, 788296), (40, 492685), (50, 394148), (100, 197074), (200, 98537), (211, 93400), (422, 46700), (467, 42200), (844, 23350), (934, 21100), (1055, 18680), (1688, 11675), (1868, 10550), (2110, 9340), (2335, 8440), (3736, 5275), (4220, 4670)]