81239875

素因数分解:

$5^3\times {\mathrm{29}}^1\times {\mathrm{73}}^1\times {\mathrm{307}}^1$

素因数の和:424

約数の個数: 32

約数和(自身を含む): 106666560

約数和(自身を除く): 25426685

約数列:

[1, 5, 25, 29, 73, 125, 145, 307, 365, 725, 1535, 1825, 2117, 3625, 7675, 8903, 9125, 10585, 22411, 38375, 44515, 52925, 112055, 222575, 264625, 560275, 649919, 1112875, 2801375, 3249595, 16247975, 81239875]

約数ペア:

[(1, 81239875), (5, 16247975), (25, 3249595), (29, 2801375), (73, 1112875), (125, 649919), (145, 560275), (307, 264625), (365, 222575), (725, 112055), (1535, 52925), (1825, 44515), (2117, 38375), (3625, 22411), (7675, 10585), (8903, 9125)]