20702220

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{4481}}^1$

素因数の和:4511

約数の個数: 96

約数和(自身を含む): 72285696

約数和(自身を除く): 51583476

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 11, 12, 14, 15, 20, 21, 22, 28, 30, 33, 35, 42, 44, 55, 60, 66, 70, 77, 84, 105, 110, 132, 140, 154, 165, 210, 220, 231, 308, 330, 385, 420, 462, 660, 770, 924, 1155, 1540, 2310, 4481, 4620, 8962, 13443, 17924, 22405, 26886, 31367, 44810, 49291, 53772, 62734, 67215, 89620, 94101, 98582, 125468, 134430, 147873, 156835, 188202, 197164, 246455, 268860, 295746, 313670, 345037, 376404, 470505, 492910, 591492, 627340, 690074, 739365, 941010, 985820, 1035111, 1380148, 1478730, 1725185, 1882020, 2070222, 2957460, 3450370, 4140444, 5175555, 6900740, 10351110, 20702220]

約数ペア:

[(1, 20702220), (2, 10351110), (3, 6900740), (4, 5175555), (5, 4140444), (6, 3450370), (7, 2957460), (10, 2070222), (11, 1882020), (12, 1725185), (14, 1478730), (15, 1380148), (20, 1035111), (21, 985820), (22, 941010), (28, 739365), (30, 690074), (33, 627340), (35, 591492), (42, 492910), (44, 470505), (55, 376404), (60, 345037), (66, 313670), (70, 295746), (77, 268860), (84, 246455), (105, 197164), (110, 188202), (132, 156835), (140, 147873), (154, 134430), (165, 125468), (210, 98582), (220, 94101), (231, 89620), (308, 67215), (330, 62734), (385, 53772), (420, 49291), (462, 44810), (660, 31367), (770, 26886), (924, 22405), (1155, 17924), (1540, 13443), (2310, 8962), (4481, 4620)]