1389547225

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{1619}}^1\times {\mathrm{3121}}^1$

素因数の和:4761

約数の個数: 24

約数和(自身を含む): 1881442080

約数和(自身を除く): 491894855

約数列:

[1, 5, 11, 25, 55, 275, 1619, 3121, 8095, 15605, 17809, 34331, 40475, 78025, 89045, 171655, 445225, 858275, 5052899, 25264495, 55581889, 126322475, 277909445, 1389547225]

約数ペア:

[(1, 1389547225), (5, 277909445), (11, 126322475), (25, 55581889), (55, 25264495), (275, 5052899), (1619, 858275), (3121, 445225), (8095, 171655), (15605, 89045), (17809, 78025), (34331, 40475)]