40671640

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{14321}}^1$

素因数の和:14403

約数の個数: 32

約数和(自身を含む): 92806560

約数和(自身を除く): 52134920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 355, 568, 710, 1420, 2840, 14321, 28642, 57284, 71605, 114568, 143210, 286420, 572840, 1016791, 2033582, 4067164, 5083955, 8134328, 10167910, 20335820, 40671640]

約数ペア:

[(1, 40671640), (2, 20335820), (4, 10167910), (5, 8134328), (8, 5083955), (10, 4067164), (20, 2033582), (40, 1016791), (71, 572840), (142, 286420), (284, 143210), (355, 114568), (568, 71605), (710, 57284), (1420, 28642), (2840, 14321)]