202259620

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{199}}^1\times {\mathrm{571}}^1$

素因数の和:868

約数の個数: 48

約数和(自身を含む): 432432000

約数和(自身を除く): 230172380

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 199, 356, 398, 445, 571, 796, 890, 995, 1142, 1780, 1990, 2284, 2855, 3980, 5710, 11420, 17711, 35422, 50819, 70844, 88555, 101638, 113629, 177110, 203276, 227258, 254095, 354220, 454516, 508190, 568145, 1016380, 1136290, 2272580, 10112981, 20225962, 40451924, 50564905, 101129810, 202259620]

約数ペア:

[(1, 202259620), (2, 101129810), (4, 50564905), (5, 40451924), (10, 20225962), (20, 10112981), (89, 2272580), (178, 1136290), (199, 1016380), (356, 568145), (398, 508190), (445, 454516), (571, 354220), (796, 254095), (890, 227258), (995, 203276), (1142, 177110), (1780, 113629), (1990, 101638), (2284, 88555), (2855, 70844), (3980, 50819), (5710, 35422), (11420, 17711)]