77909090

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{317}}^1\times {\mathrm{3511}}^1$

素因数の和:3842

約数の個数: 32

約数和(自身を含む): 160821504

約数和(自身を除く): 82912414

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 317, 634, 1585, 2219, 3170, 3511, 4438, 7022, 11095, 17555, 22190, 24577, 35110, 49154, 122885, 245770, 1112987, 2225974, 5564935, 7790909, 11129870, 15581818, 38954545, 77909090]

約数ペア:

[(1, 77909090), (2, 38954545), (5, 15581818), (7, 11129870), (10, 7790909), (14, 5564935), (35, 2225974), (70, 1112987), (317, 245770), (634, 122885), (1585, 49154), (2219, 35110), (3170, 24577), (3511, 22190), (4438, 17555), (7022, 11095)]