64403540

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{169483}}^1$

素因数の和:169511

約数の個数: 24

約数和(自身を含む): 142366560

約数和(自身を除く): 77963020

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 169483, 338966, 677932, 847415, 1694830, 3220177, 3389660, 6440354, 12880708, 16100885, 32201770, 64403540]

約数ペア:

[(1, 64403540), (2, 32201770), (4, 16100885), (5, 12880708), (10, 6440354), (19, 3389660), (20, 3220177), (38, 1694830), (76, 847415), (95, 677932), (190, 338966), (380, 169483)]