102500920

素因数分解:

$2^3\times 5^1\times {\mathrm{79}}^1\times {\mathrm{163}}^1\times {\mathrm{199}}^1$

素因数の和:452

約数の個数: 64

約数和(自身を含む): 236160000

約数和(自身を除く): 133659080

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 79, 158, 163, 199, 316, 326, 395, 398, 632, 652, 790, 796, 815, 995, 1304, 1580, 1592, 1630, 1990, 3160, 3260, 3980, 6520, 7960, 12877, 15721, 25754, 31442, 32437, 51508, 62884, 64385, 64874, 78605, 103016, 125768, 128770, 129748, 157210, 162185, 257540, 259496, 314420, 324370, 515080, 628840, 648740, 1297480, 2562523, 5125046, 10250092, 12812615, 20500184, 25625230, 51250460, 102500920]

約数ペア:

[(1, 102500920), (2, 51250460), (4, 25625230), (5, 20500184), (8, 12812615), (10, 10250092), (20, 5125046), (40, 2562523), (79, 1297480), (158, 648740), (163, 628840), (199, 515080), (316, 324370), (326, 314420), (395, 259496), (398, 257540), (632, 162185), (652, 157210), (790, 129748), (796, 128770), (815, 125768), (995, 103016), (1304, 78605), (1580, 64874), (1592, 64385), (1630, 62884), (1990, 51508), (3160, 32437), (3260, 31442), (3980, 25754), (6520, 15721), (7960, 12877)]