867898180

素因数分解:

$2^2\times 5^1\times {\mathrm{149}}^1\times {\mathrm{227}}^1\times {\mathrm{1283}}^1$

素因数の和:1668

約数の個数: 48

約数和(自身を含む): 1844337600

約数和(自身を除く): 976439420

約数列:

[1, 2, 4, 5, 10, 20, 149, 227, 298, 454, 596, 745, 908, 1135, 1283, 1490, 2270, 2566, 2980, 4540, 5132, 6415, 12830, 25660, 33823, 67646, 135292, 169115, 191167, 291241, 338230, 382334, 582482, 676460, 764668, 955835, 1164964, 1456205, 1911670, 2912410, 3823340, 5824820, 43394909, 86789818, 173579636, 216974545, 433949090, 867898180]

約数ペア:

[(1, 867898180), (2, 433949090), (4, 216974545), (5, 173579636), (10, 86789818), (20, 43394909), (149, 5824820), (227, 3823340), (298, 2912410), (454, 1911670), (596, 1456205), (745, 1164964), (908, 955835), (1135, 764668), (1283, 676460), (1490, 582482), (2270, 382334), (2566, 338230), (2980, 291241), (4540, 191167), (5132, 169115), (6415, 135292), (12830, 67646), (25660, 33823)]