655741980

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{404779}}^1$

素因数の和:404800

約数の個数: 60

約数和(自身を含む): 2057091960

約数和(自身を除く): 1401349980

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 81, 90, 108, 135, 162, 180, 270, 324, 405, 540, 810, 1620, 404779, 809558, 1214337, 1619116, 2023895, 2428674, 3643011, 4047790, 4857348, 6071685, 7286022, 8095580, 10929033, 12143370, 14572044, 18215055, 21858066, 24286740, 32787099, 36430110, 43716132, 54645165, 65574198, 72860220, 109290330, 131148396, 163935495, 218580660, 327870990, 655741980]

約数ペア:

[(1, 655741980), (2, 327870990), (3, 218580660), (4, 163935495), (5, 131148396), (6, 109290330), (9, 72860220), (10, 65574198), (12, 54645165), (15, 43716132), (18, 36430110), (20, 32787099), (27, 24286740), (30, 21858066), (36, 18215055), (45, 14572044), (54, 12143370), (60, 10929033), (81, 8095580), (90, 7286022), (108, 6071685), (135, 4857348), (162, 4047790), (180, 3643011), (270, 2428674), (324, 2023895), (405, 1619116), (540, 1214337), (810, 809558), (1620, 404779)]