4006280

素因数分解:

$2^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{2131}}^1$

素因数の和:2189

約数の個数: 32

約数和(自身を含む): 9210240

約数和(自身を除く): 5203960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 47, 94, 188, 235, 376, 470, 940, 1880, 2131, 4262, 8524, 10655, 17048, 21310, 42620, 85240, 100157, 200314, 400628, 500785, 801256, 1001570, 2003140, 4006280]

約数ペア:

[(1, 4006280), (2, 2003140), (4, 1001570), (5, 801256), (8, 500785), (10, 400628), (20, 200314), (40, 100157), (47, 85240), (94, 42620), (188, 21310), (235, 17048), (376, 10655), (470, 8524), (940, 4262), (1880, 2131)]