420662740

素因数分解:

$2^2\times 5^1\times {\mathrm{223}}^1\times {\mathrm{257}}^1\times {\mathrm{367}}^1$

素因数の和:856

約数の個数: 48

約数和(自身を含む): 893233152

約数和(自身を除く): 472570412

約数列:

[1, 2, 4, 5, 10, 20, 223, 257, 367, 446, 514, 734, 892, 1028, 1115, 1285, 1468, 1835, 2230, 2570, 3670, 4460, 5140, 7340, 57311, 81841, 94319, 114622, 163682, 188638, 229244, 286555, 327364, 377276, 409205, 471595, 573110, 818410, 943190, 1146220, 1636820, 1886380, 21033137, 42066274, 84132548, 105165685, 210331370, 420662740]

約数ペア:

[(1, 420662740), (2, 210331370), (4, 105165685), (5, 84132548), (10, 42066274), (20, 21033137), (223, 1886380), (257, 1636820), (367, 1146220), (446, 943190), (514, 818410), (734, 573110), (892, 471595), (1028, 409205), (1115, 377276), (1285, 327364), (1468, 286555), (1835, 229244), (2230, 188638), (2570, 163682), (3670, 114622), (4460, 94319), (5140, 81841), (7340, 57311)]