20013874544

素因数分解:

$2^4\times {\mathrm{61}}^1\times {\mathrm{20506019}}^1$

素因数の和:20506088

約数の個数: 20

約数和(自身を含む): 39412570440

約数和(自身を除く): 19398695896

約数列:

[1, 2, 4, 8, 16, 61, 122, 244, 488, 976, 20506019, 41012038, 82024076, 164048152, 328096304, 1250867159, 2501734318, 5003468636, 10006937272, 20013874544]

約数ペア:

[(1, 20013874544), (2, 10006937272), (4, 5003468636), (8, 2501734318), (16, 1250867159), (61, 328096304), (122, 164048152), (244, 82024076), (488, 41012038), (976, 20506019)]