90102020

素因数分解:

$2^2\times 5^1\times {\mathrm{347}}^1\times {\mathrm{12983}}^1$

素因数の和:13339

約数の個数: 24

約数和(自身を含む): 189774144

約数和(自身を除く): 99672124

約数列:

[1, 2, 4, 5, 10, 20, 347, 694, 1388, 1735, 3470, 6940, 12983, 25966, 51932, 64915, 129830, 259660, 4505101, 9010202, 18020404, 22525505, 45051010, 90102020]

約数ペア:

[(1, 90102020), (2, 45051010), (4, 22525505), (5, 18020404), (10, 9010202), (20, 4505101), (347, 259660), (694, 129830), (1388, 64915), (1735, 51932), (3470, 25966), (6940, 12983)]