156914440

素因数分解:

$2^3\times 5^1\times {\mathrm{197}}^1\times {\mathrm{19913}}^1$

素因数の和:20121

約数の個数: 32

約数和(自身を含む): 354867480

約数和(自身を除く): 197953040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 197, 394, 788, 985, 1576, 1970, 3940, 7880, 19913, 39826, 79652, 99565, 159304, 199130, 398260, 796520, 3922861, 7845722, 15691444, 19614305, 31382888, 39228610, 78457220, 156914440]

約数ペア:

[(1, 156914440), (2, 78457220), (4, 39228610), (5, 31382888), (8, 19614305), (10, 15691444), (20, 7845722), (40, 3922861), (197, 796520), (394, 398260), (788, 199130), (985, 159304), (1576, 99565), (1970, 79652), (3940, 39826), (7880, 19913)]