19891750

素因数分解:

$2^1\times 5^3\times {\mathrm{251}}^1\times {\mathrm{317}}^1$

素因数の和:585

約数の個数: 32

約数和(自身を含む): 37503648

約数和(自身を除く): 17611898

約数列:

[1, 2, 5, 10, 25, 50, 125, 250, 251, 317, 502, 634, 1255, 1585, 2510, 3170, 6275, 7925, 12550, 15850, 31375, 39625, 62750, 79250, 79567, 159134, 397835, 795670, 1989175, 3978350, 9945875, 19891750]

約数ペア:

[(1, 19891750), (2, 9945875), (5, 3978350), (10, 1989175), (25, 795670), (50, 397835), (125, 159134), (250, 79567), (251, 79250), (317, 62750), (502, 39625), (634, 31375), (1255, 15850), (1585, 12550), (2510, 7925), (3170, 6275)]