81989530

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{389}}^1\times {\mathrm{3011}}^1$

素因数の和:3414

約数の個数: 32

約数和(自身を含む): 169153920

約数和(自身を除く): 87164390

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 389, 778, 1945, 2723, 3011, 3890, 5446, 6022, 13615, 15055, 21077, 27230, 30110, 42154, 105385, 210770, 1171279, 2342558, 5856395, 8198953, 11712790, 16397906, 40994765, 81989530]

約数ペア:

[(1, 81989530), (2, 40994765), (5, 16397906), (7, 11712790), (10, 8198953), (14, 5856395), (35, 2342558), (70, 1171279), (389, 210770), (778, 105385), (1945, 42154), (2723, 30110), (3011, 27230), (3890, 21077), (5446, 15055), (6022, 13615)]