39779720

素因数分解:

$2^3\times 5^1\times {\mathrm{269}}^1\times {\mathrm{3697}}^1$

素因数の和:3977

約数の個数: 32

約数和(自身を含む): 89861400

約数和(自身を除く): 50081680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 269, 538, 1076, 1345, 2152, 2690, 3697, 5380, 7394, 10760, 14788, 18485, 29576, 36970, 73940, 147880, 994493, 1988986, 3977972, 4972465, 7955944, 9944930, 19889860, 39779720]

約数ペア:

[(1, 39779720), (2, 19889860), (4, 9944930), (5, 7955944), (8, 4972465), (10, 3977972), (20, 1988986), (40, 994493), (269, 147880), (538, 73940), (1076, 36970), (1345, 29576), (2152, 18485), (2690, 14788), (3697, 10760), (5380, 7394)]