28990125

素因数分解:

$3^2\times 5^3\times {\mathrm{73}}^1\times {\mathrm{353}}^1$

素因数の和:447

約数の個数: 48

約数和(自身を含む): 53125488

約数和(自身を除く): 24135363

約数列:

[1, 3, 5, 9, 15, 25, 45, 73, 75, 125, 219, 225, 353, 365, 375, 657, 1059, 1095, 1125, 1765, 1825, 3177, 3285, 5295, 5475, 8825, 9125, 15885, 16425, 25769, 26475, 27375, 44125, 77307, 79425, 82125, 128845, 132375, 231921, 386535, 397125, 644225, 1159605, 1932675, 3221125, 5798025, 9663375, 28990125]

約数ペア:

[(1, 28990125), (3, 9663375), (5, 5798025), (9, 3221125), (15, 1932675), (25, 1159605), (45, 644225), (73, 397125), (75, 386535), (125, 231921), (219, 132375), (225, 128845), (353, 82125), (365, 79425), (375, 77307), (657, 44125), (1059, 27375), (1095, 26475), (1125, 25769), (1765, 16425), (1825, 15885), (3177, 9125), (3285, 8825), (5295, 5475)]