1405394990

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{79}}^1\times {\mathrm{77347}}^1$

素因数の和:77456

約数の個数: 32

約数和(自身を含む): 2673146880

約数和(自身を除く): 1267751890

約数列:

[1, 2, 5, 10, 23, 46, 79, 115, 158, 230, 395, 790, 1817, 3634, 9085, 18170, 77347, 154694, 386735, 773470, 1778981, 3557962, 6110413, 8894905, 12220826, 17789810, 30552065, 61104130, 140539499, 281078998, 702697495, 1405394990]

約数ペア:

[(1, 1405394990), (2, 702697495), (5, 281078998), (10, 140539499), (23, 61104130), (46, 30552065), (79, 17789810), (115, 12220826), (158, 8894905), (230, 6110413), (395, 3557962), (790, 1778981), (1817, 773470), (3634, 386735), (9085, 154694), (18170, 77347)]