81351914

素因数分解:

$2^1\times 7^1\times {\mathrm{59}}^1\times {\mathrm{149}}^1\times {\mathrm{661}}^1$

素因数の和:878

約数の個数: 32

約数和(自身を含む): 142992000

約数和(自身を除く): 61640086

約数列:

[1, 2, 7, 14, 59, 118, 149, 298, 413, 661, 826, 1043, 1322, 2086, 4627, 8791, 9254, 17582, 38999, 61537, 77998, 98489, 123074, 196978, 272993, 545986, 689423, 1378846, 5810851, 11621702, 40675957, 81351914]

約数ペア:

[(1, 81351914), (2, 40675957), (7, 11621702), (14, 5810851), (59, 1378846), (118, 689423), (149, 545986), (298, 272993), (413, 196978), (661, 123074), (826, 98489), (1043, 77998), (1322, 61537), (2086, 38999), (4627, 17582), (8791, 9254)]