20801455

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{101}}^1\times {\mathrm{2423}}^1$

素因数の和:2546

約数の個数: 16

約数和(自身を含む): 26702784

約数和(自身を除く): 5901329

約数列:

[1, 5, 17, 85, 101, 505, 1717, 2423, 8585, 12115, 41191, 205955, 244723, 1223615, 4160291, 20801455]

約数ペア:

[(1, 20801455), (5, 4160291), (17, 1223615), (85, 244723), (101, 205955), (505, 41191), (1717, 12115), (2423, 8585)]