1640578028

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{821}}^1\times {\mathrm{26293}}^1$

素因数の和:27137

約数の個数: 24

約数和(自身を含む): 3025913520

約数和(自身を除く): 1385335492

約数列:

[1, 2, 4, 19, 38, 76, 821, 1642, 3284, 15599, 26293, 31198, 52586, 62396, 105172, 499567, 999134, 1998268, 21586553, 43173106, 86346212, 410144507, 820289014, 1640578028]

約数ペア:

[(1, 1640578028), (2, 820289014), (4, 410144507), (19, 86346212), (38, 43173106), (76, 21586553), (821, 1998268), (1642, 999134), (3284, 499567), (15599, 105172), (26293, 62396), (31198, 52586)]