20442020

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{32971}}^1$

素因数の和:33011

約数の個数: 24

約数和(自身を含む): 44314368

約数和(自身を除く): 23872348

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 32971, 65942, 131884, 164855, 329710, 659420, 1022101, 2044202, 4088404, 5110505, 10221010, 20442020]

約数ペア:

[(1, 20442020), (2, 10221010), (4, 5110505), (5, 4088404), (10, 2044202), (20, 1022101), (31, 659420), (62, 329710), (124, 164855), (155, 131884), (310, 65942), (620, 32971)]