64220680

素因数分解:

$2^3\times 5^1\times {\mathrm{79}}^1\times {\mathrm{20323}}^1$

素因数の和:20413

約数の個数: 32

約数和(自身を含む): 146332800

約数和(自身を除く): 82112120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 79, 158, 316, 395, 632, 790, 1580, 3160, 20323, 40646, 81292, 101615, 162584, 203230, 406460, 812920, 1605517, 3211034, 6422068, 8027585, 12844136, 16055170, 32110340, 64220680]

約数ペア:

[(1, 64220680), (2, 32110340), (4, 16055170), (5, 12844136), (8, 8027585), (10, 6422068), (20, 3211034), (40, 1605517), (79, 812920), (158, 406460), (316, 203230), (395, 162584), (632, 101615), (790, 81292), (1580, 40646), (3160, 20323)]