645142869

素因数分解:

$3^2\times 7^3\times {\mathrm{103}}^1\times {\mathrm{2029}}^1$

素因数の和:2159

約数の個数: 48

約数和(自身を含む): 1097824000

約数和(自身を除く): 452681131

約数列:

[1, 3, 7, 9, 21, 49, 63, 103, 147, 309, 343, 441, 721, 927, 1029, 2029, 2163, 3087, 5047, 6087, 6489, 14203, 15141, 18261, 35329, 42609, 45423, 99421, 105987, 127827, 208987, 298263, 317961, 626961, 695947, 894789, 1462909, 1880883, 2087841, 4388727, 6263523, 10240363, 13166181, 30721089, 71682541, 92163267, 215047623, 645142869]

約数ペア:

[(1, 645142869), (3, 215047623), (7, 92163267), (9, 71682541), (21, 30721089), (49, 13166181), (63, 10240363), (103, 6263523), (147, 4388727), (309, 2087841), (343, 1880883), (441, 1462909), (721, 894789), (927, 695947), (1029, 626961), (2029, 317961), (2163, 298263), (3087, 208987), (5047, 127827), (6087, 105987), (6489, 99421), (14203, 45423), (15141, 42609), (18261, 35329)]