81117375

素因数分解:

$3^1\times 5^3\times {\mathrm{199}}^1\times {\mathrm{1087}}^1$

素因数の和:1304

約数の個数: 32

約数和(自身を含む): 135782400

約数和(自身を除く): 54665025

約数列:

[1, 3, 5, 15, 25, 75, 125, 199, 375, 597, 995, 1087, 2985, 3261, 4975, 5435, 14925, 16305, 24875, 27175, 74625, 81525, 135875, 216313, 407625, 648939, 1081565, 3244695, 5407825, 16223475, 27039125, 81117375]

約数ペア:

[(1, 81117375), (3, 27039125), (5, 16223475), (15, 5407825), (25, 3244695), (75, 1081565), (125, 648939), (199, 407625), (375, 216313), (597, 135875), (995, 81525), (1087, 74625), (2985, 27175), (3261, 24875), (4975, 16305), (5435, 14925)]