19850920

素因数分解:

$2^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{10559}}^1$

素因数の和:10617

約数の個数: 32

約数和(自身を含む): 45619200

約数和(自身を除く): 25768280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 47, 94, 188, 235, 376, 470, 940, 1880, 10559, 21118, 42236, 52795, 84472, 105590, 211180, 422360, 496273, 992546, 1985092, 2481365, 3970184, 4962730, 9925460, 19850920]

約数ペア:

[(1, 19850920), (2, 9925460), (4, 4962730), (5, 3970184), (8, 2481365), (10, 1985092), (20, 992546), (40, 496273), (47, 422360), (94, 211180), (188, 105590), (235, 84472), (376, 52795), (470, 42236), (940, 21118), (1880, 10559)]