30891940

素因数分解:

$2^2\times 5^1\times {\mathrm{113}}^1\times {\mathrm{13669}}^1$

素因数の和:13791

約数の個数: 24

約数和(自身を含む): 65451960

約数和(自身を除く): 34560020

約数列:

[1, 2, 4, 5, 10, 20, 113, 226, 452, 565, 1130, 2260, 13669, 27338, 54676, 68345, 136690, 273380, 1544597, 3089194, 6178388, 7722985, 15445970, 30891940]

約数ペア:

[(1, 30891940), (2, 15445970), (4, 7722985), (5, 6178388), (10, 3089194), (20, 1544597), (113, 273380), (226, 136690), (452, 68345), (565, 54676), (1130, 27338), (2260, 13669)]