645013940

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{1112093}}^1$

素因数の和:1112131

約数の個数: 24

約数和(自身を含む): 1401238440

約数和(自身を除く): 756224500

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 290, 580, 1112093, 2224186, 4448372, 5560465, 11120930, 22241860, 32250697, 64501394, 129002788, 161253485, 322506970, 645013940]

約数ペア:

[(1, 645013940), (2, 322506970), (4, 161253485), (5, 129002788), (10, 64501394), (20, 32250697), (29, 22241860), (58, 11120930), (116, 5560465), (145, 4448372), (290, 2224186), (580, 1112093)]