20178475

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{1847}}^1$

素因数の和:1899

約数の個数: 24

約数和(自身を含む): 27498240

約数和(自身を除く): 7319765

約数列:

[1, 5, 19, 23, 25, 95, 115, 437, 475, 575, 1847, 2185, 9235, 10925, 35093, 42481, 46175, 175465, 212405, 807139, 877325, 1062025, 4035695, 20178475]

約数ペア:

[(1, 20178475), (5, 4035695), (19, 1062025), (23, 877325), (25, 807139), (95, 212405), (115, 175465), (437, 46175), (475, 42481), (575, 35093), (1847, 10925), (2185, 9235)]