87017475

素因数分解:

$3^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{139}}^1\times {\mathrm{491}}^1$

素因数の和:660

約数の個数: 48

約数和(自身を含む): 153740160

約数和(自身を除く): 66722685

約数列:

[1, 3, 5, 15, 17, 25, 51, 75, 85, 139, 255, 417, 425, 491, 695, 1275, 1473, 2085, 2363, 2455, 3475, 7089, 7365, 8347, 10425, 11815, 12275, 25041, 35445, 36825, 41735, 59075, 68249, 125205, 177225, 204747, 208675, 341245, 626025, 1023735, 1160233, 1706225, 3480699, 5118675, 5801165, 17403495, 29005825, 87017475]

約数ペア:

[(1, 87017475), (3, 29005825), (5, 17403495), (15, 5801165), (17, 5118675), (25, 3480699), (51, 1706225), (75, 1160233), (85, 1023735), (139, 626025), (255, 341245), (417, 208675), (425, 204747), (491, 177225), (695, 125205), (1275, 68249), (1473, 59075), (2085, 41735), (2363, 36825), (2455, 35445), (3475, 25041), (7089, 12275), (7365, 11815), (8347, 10425)]