156965720

素因数分解:

$2^3\times 5^1\times {\mathrm{317}}^1\times {\mathrm{12379}}^1$

素因数の和:12707

約数の個数: 32

約数和(自身を含む): 354315600

約数和(自身を除く): 197349880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 317, 634, 1268, 1585, 2536, 3170, 6340, 12379, 12680, 24758, 49516, 61895, 99032, 123790, 247580, 495160, 3924143, 7848286, 15696572, 19620715, 31393144, 39241430, 78482860, 156965720]

約数ペア:

[(1, 156965720), (2, 78482860), (4, 39241430), (5, 31393144), (8, 19620715), (10, 15696572), (20, 7848286), (40, 3924143), (317, 495160), (634, 247580), (1268, 123790), (1585, 99032), (2536, 61895), (3170, 49516), (6340, 24758), (12379, 12680)]