28642625

素因数分解:

$5^3\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{563}}^1$

素因数の和:626

約数の個数: 32

約数和(自身を含む): 40120704

約数和(自身を除く): 11478079

約数列:

[1, 5, 11, 25, 37, 55, 125, 185, 275, 407, 563, 925, 1375, 2035, 2815, 4625, 6193, 10175, 14075, 20831, 30965, 50875, 70375, 104155, 154825, 229141, 520775, 774125, 1145705, 2603875, 5728525, 28642625]

約数ペア:

[(1, 28642625), (5, 5728525), (11, 2603875), (25, 1145705), (37, 774125), (55, 520775), (125, 229141), (185, 154825), (275, 104155), (407, 70375), (563, 50875), (925, 30965), (1375, 20831), (2035, 14075), (2815, 10175), (4625, 6193)]