80143444

素因数分解:

$2^2\times {\mathrm{19}}^2\times {\mathrm{55501}}^1$

素因数の和:55543

約数の個数: 18

約数和(自身を含む): 148023834

約数和(自身を除く): 67880390

約数列:

[1, 2, 4, 19, 38, 76, 361, 722, 1444, 55501, 111002, 222004, 1054519, 2109038, 4218076, 20035861, 40071722, 80143444]

約数ペア:

[(1, 80143444), (2, 40071722), (4, 20035861), (19, 4218076), (38, 2109038), (76, 1054519), (361, 222004), (722, 111002), (1444, 55501)]