18031875

素因数分解:

$3^1\times 5^4\times {\mathrm{59}}^1\times {\mathrm{163}}^1$

素因数の和:245

約数の個数: 40

約数和(自身を含む): 30740160

約数和(自身を除く): 12708285

約数列:

[1, 3, 5, 15, 25, 59, 75, 125, 163, 177, 295, 375, 489, 625, 815, 885, 1475, 1875, 2445, 4075, 4425, 7375, 9617, 12225, 20375, 22125, 28851, 36875, 48085, 61125, 101875, 110625, 144255, 240425, 305625, 721275, 1202125, 3606375, 6010625, 18031875]

約数ペア:

[(1, 18031875), (3, 6010625), (5, 3606375), (15, 1202125), (25, 721275), (59, 305625), (75, 240425), (125, 144255), (163, 110625), (177, 101875), (295, 61125), (375, 48085), (489, 36875), (625, 28851), (815, 22125), (885, 20375), (1475, 12225), (1875, 9617), (2445, 7375), (4075, 4425)]