15131475

素因数分解:

$3^3\times 5^2\times {\mathrm{29}}^1\times {\mathrm{773}}^1$

素因数の和:821

約数の個数: 48

約数和(自身を含む): 28792800

約数和(自身を除く): 13661325

約数列:

[1, 3, 5, 9, 15, 25, 27, 29, 45, 75, 87, 135, 145, 225, 261, 435, 675, 725, 773, 783, 1305, 2175, 2319, 3865, 3915, 6525, 6957, 11595, 19325, 19575, 20871, 22417, 34785, 57975, 67251, 104355, 112085, 173925, 201753, 336255, 521775, 560425, 605259, 1008765, 1681275, 3026295, 5043825, 15131475]

約数ペア:

[(1, 15131475), (3, 5043825), (5, 3026295), (9, 1681275), (15, 1008765), (25, 605259), (27, 560425), (29, 521775), (45, 336255), (75, 201753), (87, 173925), (135, 112085), (145, 104355), (225, 67251), (261, 57975), (435, 34785), (675, 22417), (725, 20871), (773, 19575), (783, 19325), (1305, 11595), (2175, 6957), (2319, 6525), (3865, 3915)]