899480

素因数分解:

$2^3\times 5^1\times {\mathrm{113}}^1\times {\mathrm{199}}^1$

素因数の和:323

約数の個数: 32

約数和(自身を含む): 2052000

約数和(自身を除く): 1152520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 113, 199, 226, 398, 452, 565, 796, 904, 995, 1130, 1592, 1990, 2260, 3980, 4520, 7960, 22487, 44974, 89948, 112435, 179896, 224870, 449740, 899480]

約数ペア:

[(1, 899480), (2, 449740), (4, 224870), (5, 179896), (8, 112435), (10, 89948), (20, 44974), (40, 22487), (113, 7960), (199, 4520), (226, 3980), (398, 2260), (452, 1990), (565, 1592), (796, 1130), (904, 995)]