312613780

素因数分解:

$2^2\times 5^1\times {\mathrm{139}}^2\times {\mathrm{809}}^1$

素因数の和:1096

約数の個数: 36

約数和(自身を含む): 662063220

約数和(自身を除く): 349449440

約数列:

[1, 2, 4, 5, 10, 20, 139, 278, 556, 695, 809, 1390, 1618, 2780, 3236, 4045, 8090, 16180, 19321, 38642, 77284, 96605, 112451, 193210, 224902, 386420, 449804, 562255, 1124510, 2249020, 15630689, 31261378, 62522756, 78153445, 156306890, 312613780]

約数ペア:

[(1, 312613780), (2, 156306890), (4, 78153445), (5, 62522756), (10, 31261378), (20, 15630689), (139, 2249020), (278, 1124510), (556, 562255), (695, 449804), (809, 386420), (1390, 224902), (1618, 193210), (2780, 112451), (3236, 96605), (4045, 77284), (8090, 38642), (16180, 19321)]