28506775

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{4507}}^1$

素因数の和:4551

約数の個数: 24

約数和(自身を含む): 40247424

約数和(自身を除く): 11740649

約数列:

[1, 5, 11, 23, 25, 55, 115, 253, 275, 575, 1265, 4507, 6325, 22535, 49577, 103661, 112675, 247885, 518305, 1140271, 1239425, 2591525, 5701355, 28506775]

約数ペア:

[(1, 28506775), (5, 5701355), (11, 2591525), (23, 1239425), (25, 1140271), (55, 518305), (115, 247885), (253, 112675), (275, 103661), (575, 49577), (1265, 22535), (4507, 6325)]