66281140

素因数分解:

$2^2\times 5^1\times {\mathrm{787}}^1\times {\mathrm{4211}}^1$

素因数の和:5007

約数の個数: 24

約数和(自身を含む): 139400352

約数和(自身を除く): 73119212

約数列:

[1, 2, 4, 5, 10, 20, 787, 1574, 3148, 3935, 4211, 7870, 8422, 15740, 16844, 21055, 42110, 84220, 3314057, 6628114, 13256228, 16570285, 33140570, 66281140]

約数ペア:

[(1, 66281140), (2, 33140570), (4, 16570285), (5, 13256228), (10, 6628114), (20, 3314057), (787, 84220), (1574, 42110), (3148, 21055), (3935, 16844), (4211, 15740), (7870, 8422)]