81493225

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{401}}^1\times {\mathrm{739}}^1$

素因数の和:1161

約数の個数: 24

約数和(自身を含む): 110662560

約数和(自身を除く): 29169335

約数列:

[1, 5, 11, 25, 55, 275, 401, 739, 2005, 3695, 4411, 8129, 10025, 18475, 22055, 40645, 110275, 203225, 296339, 1481695, 3259729, 7408475, 16298645, 81493225]

約数ペア:

[(1, 81493225), (5, 16298645), (11, 7408475), (25, 3259729), (55, 1481695), (275, 296339), (401, 203225), (739, 110275), (2005, 40645), (3695, 22055), (4411, 18475), (8129, 10025)]