157424920

素因数分解:

$2^3\times 5^1\times {\mathrm{199}}^1\times {\mathrm{19777}}^1$

素因数の和:19987

約数の個数: 32

約数和(自身を含む): 356004000

約数和(自身を除く): 198579080

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 199, 398, 796, 995, 1592, 1990, 3980, 7960, 19777, 39554, 79108, 98885, 158216, 197770, 395540, 791080, 3935623, 7871246, 15742492, 19678115, 31484984, 39356230, 78712460, 157424920]

約数ペア:

[(1, 157424920), (2, 78712460), (4, 39356230), (5, 31484984), (8, 19678115), (10, 15742492), (20, 7871246), (40, 3935623), (199, 791080), (398, 395540), (796, 197770), (995, 158216), (1592, 98885), (1990, 79108), (3980, 39554), (7960, 19777)]