39720280

素因数分解:

$2^3\times 5^1\times {\mathrm{67}}^1\times {\mathrm{14821}}^1$

素因数の和:14899

約数の個数: 32

約数和(自身を含む): 90710640

約数和(自身を除く): 50990360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 67, 134, 268, 335, 536, 670, 1340, 2680, 14821, 29642, 59284, 74105, 118568, 148210, 296420, 592840, 993007, 1986014, 3972028, 4965035, 7944056, 9930070, 19860140, 39720280]

約数ペア:

[(1, 39720280), (2, 19860140), (4, 9930070), (5, 7944056), (8, 4965035), (10, 3972028), (20, 1986014), (40, 993007), (67, 592840), (134, 296420), (268, 148210), (335, 118568), (536, 74105), (670, 59284), (1340, 29642), (2680, 14821)]