1640321672

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{18640019}}^1$

素因数の和:18640036

約数の個数: 16

約数和(自身を含む): 3355203600

約数和(自身を除く): 1714881928

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 18640019, 37280038, 74560076, 149120152, 205040209, 410080418, 820160836, 1640321672]

約数ペア:

[(1, 1640321672), (2, 820160836), (4, 410080418), (8, 205040209), (11, 149120152), (22, 74560076), (44, 37280038), (88, 18640019)]