8728220

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{103}}^1\times {\mathrm{223}}^1$

素因数の和:354

約数の個数: 48

約数和(自身を含む): 19568640

約数和(自身を除く): 10840420

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 103, 190, 206, 223, 380, 412, 446, 515, 892, 1030, 1115, 1957, 2060, 2230, 3914, 4237, 4460, 7828, 8474, 9785, 16948, 19570, 21185, 22969, 39140, 42370, 45938, 84740, 91876, 114845, 229690, 436411, 459380, 872822, 1745644, 2182055, 4364110, 8728220]

約数ペア:

[(1, 8728220), (2, 4364110), (4, 2182055), (5, 1745644), (10, 872822), (19, 459380), (20, 436411), (38, 229690), (76, 114845), (95, 91876), (103, 84740), (190, 45938), (206, 42370), (223, 39140), (380, 22969), (412, 21185), (446, 19570), (515, 16948), (892, 9785), (1030, 8474), (1115, 7828), (1957, 4460), (2060, 4237), (2230, 3914)]