20138455

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{10301}}^1$

素因数の和:10346

約数の個数: 16

約数和(自身を含む): 26702784

約数和(自身を除く): 6564329

約数列:

[1, 5, 17, 23, 85, 115, 391, 1955, 10301, 51505, 175117, 236923, 875585, 1184615, 4027691, 20138455]

約数ペア:

[(1, 20138455), (5, 4027691), (17, 1184615), (23, 875585), (85, 236923), (115, 175117), (391, 51505), (1955, 10301)]