81489925

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{17431}}^1$

素因数の和:17469

約数の個数: 24

約数和(自身を含む): 116724672

約数和(自身を除く): 35234747

約数列:

[1, 5, 11, 17, 25, 55, 85, 187, 275, 425, 935, 4675, 17431, 87155, 191741, 296327, 435775, 958705, 1481635, 3259597, 4793525, 7408175, 16297985, 81489925]

約数ペア:

[(1, 81489925), (5, 16297985), (11, 7408175), (17, 4793525), (25, 3259597), (55, 1481635), (85, 958705), (187, 435775), (275, 296327), (425, 191741), (935, 87155), (4675, 17431)]