20123686090

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{69392021}}^1$

素因数の和:69392057

約数の個数: 16

約数和(自身を含む): 37471691880

約数和(自身を除く): 17348005790

約数列:

[1, 2, 5, 10, 29, 58, 145, 290, 69392021, 138784042, 346960105, 693920210, 2012368609, 4024737218, 10061843045, 20123686090]

約数ペア:

[(1, 20123686090), (2, 10061843045), (5, 4024737218), (10, 2012368609), (29, 693920210), (58, 346960105), (145, 138784042), (290, 69392021)]