123878180

素因数分解:

$2^2\times 5^1\times {\mathrm{107}}^2\times {\mathrm{541}}^1$

素因数の和:764

約数の個数: 36

約数和(自身を含む): 263083548

約数和(自身を除く): 139205368

約数列:

[1, 2, 4, 5, 10, 20, 107, 214, 428, 535, 541, 1070, 1082, 2140, 2164, 2705, 5410, 10820, 11449, 22898, 45796, 57245, 57887, 114490, 115774, 228980, 231548, 289435, 578870, 1157740, 6193909, 12387818, 24775636, 30969545, 61939090, 123878180]

約数ペア:

[(1, 123878180), (2, 61939090), (4, 30969545), (5, 24775636), (10, 12387818), (20, 6193909), (107, 1157740), (214, 578870), (428, 289435), (535, 231548), (541, 228980), (1070, 115774), (1082, 114490), (2140, 57887), (2164, 57245), (2705, 45796), (5410, 22898), (10820, 11449)]