208028360

素因数分解:

$2^3\times 5^1\times {\mathrm{557}}^1\times {\mathrm{9337}}^1$

素因数の和:9905

約数の個数: 32

約数和(自身を含む): 468954360

約数和(自身を除く): 260926000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 557, 1114, 2228, 2785, 4456, 5570, 9337, 11140, 18674, 22280, 37348, 46685, 74696, 93370, 186740, 373480, 5200709, 10401418, 20802836, 26003545, 41605672, 52007090, 104014180, 208028360]

約数ペア:

[(1, 208028360), (2, 104014180), (4, 52007090), (5, 41605672), (8, 26003545), (10, 20802836), (20, 10401418), (40, 5200709), (557, 373480), (1114, 186740), (2228, 93370), (2785, 74696), (4456, 46685), (5570, 37348), (9337, 22280), (11140, 18674)]