15221375

素因数分解:

$5^3\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1$

素因数の和:93

約数の個数: 64

約数和(自身を含む): 23587200

約数和(自身を除く): 8365825

約数列:

[1, 5, 13, 17, 19, 25, 29, 65, 85, 95, 125, 145, 221, 247, 323, 325, 377, 425, 475, 493, 551, 725, 1105, 1235, 1615, 1625, 1885, 2125, 2375, 2465, 2755, 3625, 4199, 5525, 6175, 6409, 7163, 8075, 9367, 9425, 12325, 13775, 20995, 27625, 30875, 32045, 35815, 40375, 46835, 47125, 61625, 68875, 104975, 121771, 160225, 179075, 234175, 524875, 608855, 801125, 895375, 1170875, 3044275, 15221375]

約数ペア:

[(1, 15221375), (5, 3044275), (13, 1170875), (17, 895375), (19, 801125), (25, 608855), (29, 524875), (65, 234175), (85, 179075), (95, 160225), (125, 121771), (145, 104975), (221, 68875), (247, 61625), (323, 47125), (325, 46835), (377, 40375), (425, 35815), (475, 32045), (493, 30875), (551, 27625), (725, 20995), (1105, 13775), (1235, 12325), (1615, 9425), (1625, 9367), (1885, 8075), (2125, 7163), (2375, 6409), (2465, 6175), (2755, 5525), (3625, 4199)]