39791980

素因数分解:

$2^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{19699}}^1$

素因数の和:19809

約数の個数: 24

約数和(自身を含む): 84394800

約数和(自身を除く): 44602820

約数列:

[1, 2, 4, 5, 10, 20, 101, 202, 404, 505, 1010, 2020, 19699, 39398, 78796, 98495, 196990, 393980, 1989599, 3979198, 7958396, 9947995, 19895990, 39791980]

約数ペア:

[(1, 39791980), (2, 19895990), (4, 9947995), (5, 7958396), (10, 3979198), (20, 1989599), (101, 393980), (202, 196990), (404, 98495), (505, 78796), (1010, 39398), (2020, 19699)]