28136475

素因数分解:

$3^2\times 5^2\times {\mathrm{23}}^1\times {\mathrm{5437}}^1$

素因数の和:5476

約数の個数: 36

約数和(自身を含む): 52596336

約数和(自身を除く): 24459861

約数列:

[1, 3, 5, 9, 15, 23, 25, 45, 69, 75, 115, 207, 225, 345, 575, 1035, 1725, 5175, 5437, 16311, 27185, 48933, 81555, 125051, 135925, 244665, 375153, 407775, 625255, 1125459, 1223325, 1875765, 3126275, 5627295, 9378825, 28136475]

約数ペア:

[(1, 28136475), (3, 9378825), (5, 5627295), (9, 3126275), (15, 1875765), (23, 1223325), (25, 1125459), (45, 625255), (69, 407775), (75, 375153), (115, 244665), (207, 135925), (225, 125051), (345, 81555), (575, 48933), (1035, 27185), (1725, 16311), (5175, 5437)]