81158025

素因数分解:

$3^1\times 5^2\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{337}}^1$

素因数の和:395

約数の個数: 72

約数和(自身を含む): 153397920

約数和(自身を除く): 72239895

約数列:

[1, 3, 5, 13, 15, 19, 25, 39, 57, 65, 75, 95, 169, 195, 247, 285, 325, 337, 475, 507, 741, 845, 975, 1011, 1235, 1425, 1685, 2535, 3211, 3705, 4225, 4381, 5055, 6175, 6403, 8425, 9633, 12675, 13143, 16055, 18525, 19209, 21905, 25275, 32015, 48165, 56953, 65715, 80275, 83239, 96045, 109525, 160075, 170859, 240825, 249717, 284765, 328575, 416195, 480225, 854295, 1082107, 1248585, 1423825, 2080975, 3246321, 4271475, 5410535, 6242925, 16231605, 27052675, 81158025]

約数ペア:

[(1, 81158025), (3, 27052675), (5, 16231605), (13, 6242925), (15, 5410535), (19, 4271475), (25, 3246321), (39, 2080975), (57, 1423825), (65, 1248585), (75, 1082107), (95, 854295), (169, 480225), (195, 416195), (247, 328575), (285, 284765), (325, 249717), (337, 240825), (475, 170859), (507, 160075), (741, 109525), (845, 96045), (975, 83239), (1011, 80275), (1235, 65715), (1425, 56953), (1685, 48165), (2535, 32015), (3211, 25275), (3705, 21905), (4225, 19209), (4381, 18525), (5055, 16055), (6175, 13143), (6403, 12675), (8425, 9633)]