90256620

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{21187}}^1$

素因数の和:21270

約数の個数: 48

約数和(自身を含む): 256290048

約数和(自身を除く): 166033428

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 71, 142, 213, 284, 355, 426, 710, 852, 1065, 1420, 2130, 4260, 21187, 42374, 63561, 84748, 105935, 127122, 211870, 254244, 317805, 423740, 635610, 1271220, 1504277, 3008554, 4512831, 6017108, 7521385, 9025662, 15042770, 18051324, 22564155, 30085540, 45128310, 90256620]

約数ペア:

[(1, 90256620), (2, 45128310), (3, 30085540), (4, 22564155), (5, 18051324), (6, 15042770), (10, 9025662), (12, 7521385), (15, 6017108), (20, 4512831), (30, 3008554), (60, 1504277), (71, 1271220), (142, 635610), (213, 423740), (284, 317805), (355, 254244), (426, 211870), (710, 127122), (852, 105935), (1065, 84748), (1420, 63561), (2130, 42374), (4260, 21187)]