81247375

素因数分解:

$5^3\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{1597}}^1$

素因数の和:1660

約数の個数: 32

約数和(自身を含む): 113675328

約数和(自身を除く): 32427953

約数列:

[1, 5, 11, 25, 37, 55, 125, 185, 275, 407, 925, 1375, 1597, 2035, 4625, 7985, 10175, 17567, 39925, 50875, 59089, 87835, 199625, 295445, 439175, 649979, 1477225, 2195875, 3249895, 7386125, 16249475, 81247375]

約数ペア:

[(1, 81247375), (5, 16249475), (11, 7386125), (25, 3249895), (37, 2195875), (55, 1477225), (125, 649979), (185, 439175), (275, 295445), (407, 199625), (925, 87835), (1375, 59089), (1597, 50875), (2035, 39925), (4625, 17567), (7985, 10175)]