16413520

素因数分解:

$2^4\times 5^1\times {\mathrm{199}}^1\times {\mathrm{1031}}^1$

素因数の和:1243

約数の個数: 40

約数和(自身を含む): 38390400

約数和(自身を除く): 21976880

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 199, 398, 796, 995, 1031, 1592, 1990, 2062, 3184, 3980, 4124, 5155, 7960, 8248, 10310, 15920, 16496, 20620, 41240, 82480, 205169, 410338, 820676, 1025845, 1641352, 2051690, 3282704, 4103380, 8206760, 16413520]

約数ペア:

[(1, 16413520), (2, 8206760), (4, 4103380), (5, 3282704), (8, 2051690), (10, 1641352), (16, 1025845), (20, 820676), (40, 410338), (80, 205169), (199, 82480), (398, 41240), (796, 20620), (995, 16496), (1031, 15920), (1592, 10310), (1990, 8248), (2062, 7960), (3184, 5155), (3980, 4124)]