81738625

素因数分解:

$5^3\times {\mathrm{41}}^2\times {\mathrm{389}}^1$

素因数の和:486

約数の個数: 24

約数和(自身を含む): 104827320

約数和(自身を除く): 23088695

約数列:

[1, 5, 25, 41, 125, 205, 389, 1025, 1681, 1945, 5125, 8405, 9725, 15949, 42025, 48625, 79745, 210125, 398725, 653909, 1993625, 3269545, 16347725, 81738625]

約数ペア:

[(1, 81738625), (5, 16347725), (25, 3269545), (41, 1993625), (125, 653909), (205, 398725), (389, 210125), (1025, 79745), (1681, 48625), (1945, 42025), (5125, 15949), (8405, 9725)]