64527340

素因数分解:

$2^2\times 5^1\times {\mathrm{1289}}^1\times {\mathrm{2503}}^1$

素因数の和:3801

約数の個数: 24

約数和(自身を含む): 135666720

約数和(自身を除く): 71139380

約数列:

[1, 2, 4, 5, 10, 20, 1289, 2503, 2578, 5006, 5156, 6445, 10012, 12515, 12890, 25030, 25780, 50060, 3226367, 6452734, 12905468, 16131835, 32263670, 64527340]

約数ペア:

[(1, 64527340), (2, 32263670), (4, 16131835), (5, 12905468), (10, 6452734), (20, 3226367), (1289, 50060), (2503, 25780), (2578, 25030), (5006, 12890), (5156, 12515), (6445, 10012)]