81504075

素因数分解:

$3^1\times 5^2\times {\mathrm{59}}^1\times {\mathrm{113}}^1\times {\mathrm{163}}^1$

素因数の和:348

約数の個数: 48

約数和(自身を含む): 139098240

約数和(自身を除く): 57594165

約数列:

[1, 3, 5, 15, 25, 59, 75, 113, 163, 177, 295, 339, 489, 565, 815, 885, 1475, 1695, 2445, 2825, 4075, 4425, 6667, 8475, 9617, 12225, 18419, 20001, 28851, 33335, 48085, 55257, 92095, 100005, 144255, 166675, 240425, 276285, 460475, 500025, 721275, 1086721, 1381425, 3260163, 5433605, 16300815, 27168025, 81504075]

約数ペア:

[(1, 81504075), (3, 27168025), (5, 16300815), (15, 5433605), (25, 3260163), (59, 1381425), (75, 1086721), (113, 721275), (163, 500025), (177, 460475), (295, 276285), (339, 240425), (489, 166675), (565, 144255), (815, 100005), (885, 92095), (1475, 55257), (1695, 48085), (2445, 33335), (2825, 28851), (4075, 20001), (4425, 18419), (6667, 12225), (8475, 9617)]