28457865

素因数分解:

$3^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{2969}}^1$

素因数の和:3054

約数の個数: 32

約数和(自身を含む): 51321600

約数和(自身を除く): 22863735

約数列:

[1, 3, 5, 9, 15, 27, 45, 71, 135, 213, 355, 639, 1065, 1917, 2969, 3195, 8907, 9585, 14845, 26721, 44535, 80163, 133605, 210799, 400815, 632397, 1053995, 1897191, 3161985, 5691573, 9485955, 28457865]

約数ペア:

[(1, 28457865), (3, 9485955), (5, 5691573), (9, 3161985), (15, 1897191), (27, 1053995), (45, 632397), (71, 400815), (135, 210799), (213, 133605), (355, 80163), (639, 44535), (1065, 26721), (1917, 14845), (2969, 9585), (3195, 8907)]