90825880

素因数分解:

$2^3\times 5^1\times {\mathrm{107}}^1\times {\mathrm{21221}}^1$

素因数の和:21339

約数の個数: 32

約数和(自身を含む): 206277840

約数和(自身を除く): 115451960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 107, 214, 428, 535, 856, 1070, 2140, 4280, 21221, 42442, 84884, 106105, 169768, 212210, 424420, 848840, 2270647, 4541294, 9082588, 11353235, 18165176, 22706470, 45412940, 90825880]

約数ペア:

[(1, 90825880), (2, 45412940), (4, 22706470), (5, 18165176), (8, 11353235), (10, 9082588), (20, 4541294), (40, 2270647), (107, 848840), (214, 424420), (428, 212210), (535, 169768), (856, 106105), (1070, 84884), (2140, 42442), (4280, 21221)]