21560364460

素因数分解:

$2^2\times 5^1\times {\mathrm{199}}^1\times {\mathrm{2203}}^1\times {\mathrm{2459}}^1$

素因数の和:4870

約数の個数: 48

約数和(自身を含む): 45543456000

約数和(自身を除く): 23983091540

約数列:

[1, 2, 4, 5, 10, 20, 199, 398, 796, 995, 1990, 2203, 2459, 3980, 4406, 4918, 8812, 9836, 11015, 12295, 22030, 24590, 44060, 49180, 438397, 489341, 876794, 978682, 1753588, 1957364, 2191985, 2446705, 4383970, 4893410, 5417177, 8767940, 9786820, 10834354, 21668708, 27085885, 54171770, 108343540, 1078018223, 2156036446, 4312072892, 5390091115, 10780182230, 21560364460]

約数ペア:

[(1, 21560364460), (2, 10780182230), (4, 5390091115), (5, 4312072892), (10, 2156036446), (20, 1078018223), (199, 108343540), (398, 54171770), (796, 27085885), (995, 21668708), (1990, 10834354), (2203, 9786820), (2459, 8767940), (3980, 5417177), (4406, 4893410), (4918, 4383970), (8812, 2446705), (9836, 2191985), (11015, 1957364), (12295, 1753588), (22030, 978682), (24590, 876794), (44060, 489341), (49180, 438397)]