90929980

素因数分解:

$2^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{109}}^1\times {\mathrm{787}}^1$

素因数の和:958

約数の個数: 48

約数和(自身を含む): 196590240

約数和(自身を除く): 105660260

約数列:

[1, 2, 4, 5, 10, 20, 53, 106, 109, 212, 218, 265, 436, 530, 545, 787, 1060, 1090, 1574, 2180, 3148, 3935, 5777, 7870, 11554, 15740, 23108, 28885, 41711, 57770, 83422, 85783, 115540, 166844, 171566, 208555, 343132, 417110, 428915, 834220, 857830, 1715660, 4546499, 9092998, 18185996, 22732495, 45464990, 90929980]

約数ペア:

[(1, 90929980), (2, 45464990), (4, 22732495), (5, 18185996), (10, 9092998), (20, 4546499), (53, 1715660), (106, 857830), (109, 834220), (212, 428915), (218, 417110), (265, 343132), (436, 208555), (530, 171566), (545, 166844), (787, 115540), (1060, 85783), (1090, 83422), (1574, 57770), (2180, 41711), (3148, 28885), (3935, 23108), (5777, 15740), (7870, 11554)]