16819480

素因数分解:

$2^3\times 5^1\times {\mathrm{199}}^1\times {\mathrm{2113}}^1$

素因数の和:2323

約数の個数: 32

約数和(自身を含む): 38052000

約数和(自身を除く): 21232520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 199, 398, 796, 995, 1592, 1990, 2113, 3980, 4226, 7960, 8452, 10565, 16904, 21130, 42260, 84520, 420487, 840974, 1681948, 2102435, 3363896, 4204870, 8409740, 16819480]

約数ペア:

[(1, 16819480), (2, 8409740), (4, 4204870), (5, 3363896), (8, 2102435), (10, 1681948), (20, 840974), (40, 420487), (199, 84520), (398, 42260), (796, 21130), (995, 16904), (1592, 10565), (1990, 8452), (2113, 7960), (3980, 4226)]