28125825

素因数分解:

$3^1\times 5^2\times 7^1\times {\mathrm{13}}^2\times {\mathrm{317}}^1$

素因数の和:363

約数の個数: 72

約数和(自身を含む): 57728448

約数和(自身を除く): 29602623

約数列:

[1, 3, 5, 7, 13, 15, 21, 25, 35, 39, 65, 75, 91, 105, 169, 175, 195, 273, 317, 325, 455, 507, 525, 845, 951, 975, 1183, 1365, 1585, 2219, 2275, 2535, 3549, 4121, 4225, 4755, 5915, 6657, 6825, 7925, 11095, 12363, 12675, 17745, 20605, 23775, 28847, 29575, 33285, 53573, 55475, 61815, 86541, 88725, 103025, 144235, 160719, 166425, 267865, 309075, 375011, 432705, 721175, 803595, 1125033, 1339325, 1875055, 2163525, 4017975, 5625165, 9375275, 28125825]

約数ペア:

[(1, 28125825), (3, 9375275), (5, 5625165), (7, 4017975), (13, 2163525), (15, 1875055), (21, 1339325), (25, 1125033), (35, 803595), (39, 721175), (65, 432705), (75, 375011), (91, 309075), (105, 267865), (169, 166425), (175, 160719), (195, 144235), (273, 103025), (317, 88725), (325, 86541), (455, 61815), (507, 55475), (525, 53573), (845, 33285), (951, 29575), (975, 28847), (1183, 23775), (1365, 20605), (1585, 17745), (2219, 12675), (2275, 12363), (2535, 11095), (3549, 7925), (4121, 6825), (4225, 6657), (4755, 5915)]