20168408

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{3659}}^1$

素因数の和:3731

約数の個数: 32

約数和(自身を含む): 41504400

約数和(自身を除く): 21335992

約数列:

[1, 2, 4, 8, 13, 26, 52, 53, 104, 106, 212, 424, 689, 1378, 2756, 3659, 5512, 7318, 14636, 29272, 47567, 95134, 190268, 193927, 380536, 387854, 775708, 1551416, 2521051, 5042102, 10084204, 20168408]

約数ペア:

[(1, 20168408), (2, 10084204), (4, 5042102), (8, 2521051), (13, 1551416), (26, 775708), (52, 387854), (53, 380536), (104, 193927), (106, 190268), (212, 95134), (424, 47567), (689, 29272), (1378, 14636), (2756, 7318), (3659, 5512)]