81051825

素因数分解:

$3^1\times 5^2\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{491}}^1$

素因数の和:606

約数の個数: 48

約数和(自身を含む): 140562432

約数和(自身を除く): 59510607

約数列:

[1, 3, 5, 15, 25, 31, 71, 75, 93, 155, 213, 355, 465, 491, 775, 1065, 1473, 1775, 2201, 2325, 2455, 5325, 6603, 7365, 11005, 12275, 15221, 33015, 34861, 36825, 45663, 55025, 76105, 104583, 165075, 174305, 228315, 380525, 522915, 871525, 1080691, 1141575, 2614575, 3242073, 5403455, 16210365, 27017275, 81051825]

約数ペア:

[(1, 81051825), (3, 27017275), (5, 16210365), (15, 5403455), (25, 3242073), (31, 2614575), (71, 1141575), (75, 1080691), (93, 871525), (155, 522915), (213, 380525), (355, 228315), (465, 174305), (491, 165075), (775, 104583), (1065, 76105), (1473, 55025), (1775, 45663), (2201, 36825), (2325, 34861), (2455, 33015), (5325, 15221), (6603, 12275), (7365, 11005)]