20184775

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{173}}^1\times {\mathrm{359}}^1$

素因数の和:555

約数の個数: 24

約数和(自身を含む): 27185760

約数和(自身を除く): 7000985

約数列:

[1, 5, 13, 25, 65, 173, 325, 359, 865, 1795, 2249, 4325, 4667, 8975, 11245, 23335, 56225, 62107, 116675, 310535, 807391, 1552675, 4036955, 20184775]

約数ペア:

[(1, 20184775), (5, 4036955), (13, 1552675), (25, 807391), (65, 310535), (173, 116675), (325, 62107), (359, 56225), (865, 23335), (1795, 11245), (2249, 8975), (4325, 4667)]