28287225

素因数分解:

$3^4\times 5^2\times {\mathrm{61}}^1\times {\mathrm{229}}^1$

素因数の和:312

約数の個数: 60

約数和(自身を含む): 53489260

約数和(自身を除く): 25202035

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 61, 75, 81, 135, 183, 225, 229, 305, 405, 549, 675, 687, 915, 1145, 1525, 1647, 2025, 2061, 2745, 3435, 4575, 4941, 5725, 6183, 8235, 10305, 13725, 13969, 17175, 18549, 24705, 30915, 41175, 41907, 51525, 69845, 92745, 123525, 125721, 154575, 209535, 349225, 377163, 463725, 628605, 1047675, 1131489, 1885815, 3143025, 5657445, 9429075, 28287225]

約数ペア:

[(1, 28287225), (3, 9429075), (5, 5657445), (9, 3143025), (15, 1885815), (25, 1131489), (27, 1047675), (45, 628605), (61, 463725), (75, 377163), (81, 349225), (135, 209535), (183, 154575), (225, 125721), (229, 123525), (305, 92745), (405, 69845), (549, 51525), (675, 41907), (687, 41175), (915, 30915), (1145, 24705), (1525, 18549), (1647, 17175), (2025, 13969), (2061, 13725), (2745, 10305), (3435, 8235), (4575, 6183), (4941, 5725)]