81088940

素因数分解:

$2^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{227}}^1\times {\mathrm{337}}^1$

素因数の和:626

約数の個数: 48

約数和(自身を含む): 174781152

約数和(自身を除く): 93692212

約数列:

[1, 2, 4, 5, 10, 20, 53, 106, 212, 227, 265, 337, 454, 530, 674, 908, 1060, 1135, 1348, 1685, 2270, 3370, 4540, 6740, 12031, 17861, 24062, 35722, 48124, 60155, 71444, 76499, 89305, 120310, 152998, 178610, 240620, 305996, 357220, 382495, 764990, 1529980, 4054447, 8108894, 16217788, 20272235, 40544470, 81088940]

約数ペア:

[(1, 81088940), (2, 40544470), (4, 20272235), (5, 16217788), (10, 8108894), (20, 4054447), (53, 1529980), (106, 764990), (212, 382495), (227, 357220), (265, 305996), (337, 240620), (454, 178610), (530, 152998), (674, 120310), (908, 89305), (1060, 76499), (1135, 71444), (1348, 60155), (1685, 48124), (2270, 35722), (3370, 24062), (4540, 17861), (6740, 12031)]