19443875

素因数分解:

$5^3\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{179}}^1$

素因数の和:284

約数の個数: 32

約数和(自身を含む): 26956800

約数和(自身を除く): 7512925

約数列:

[1, 5, 11, 25, 55, 79, 125, 179, 275, 395, 869, 895, 1375, 1969, 1975, 4345, 4475, 9845, 9875, 14141, 21725, 22375, 49225, 70705, 108625, 155551, 246125, 353525, 777755, 1767625, 3888775, 19443875]

約数ペア:

[(1, 19443875), (5, 3888775), (11, 1767625), (25, 777755), (55, 353525), (79, 246125), (125, 155551), (179, 108625), (275, 70705), (395, 49225), (869, 22375), (895, 21725), (1375, 14141), (1969, 9875), (1975, 9845), (4345, 4475)]