20295640

素因数分解:

$2^3\times 5^1\times {\mathrm{67}}^1\times {\mathrm{7573}}^1$

素因数の和:7651

約数の個数: 32

約数和(自身を含む): 46352880

約数和(自身を除く): 26057240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 67, 134, 268, 335, 536, 670, 1340, 2680, 7573, 15146, 30292, 37865, 60584, 75730, 151460, 302920, 507391, 1014782, 2029564, 2536955, 4059128, 5073910, 10147820, 20295640]

約数ペア:

[(1, 20295640), (2, 10147820), (4, 5073910), (5, 4059128), (8, 2536955), (10, 2029564), (20, 1014782), (40, 507391), (67, 302920), (134, 151460), (268, 75730), (335, 60584), (536, 37865), (670, 30292), (1340, 15146), (2680, 7573)]