20147005

素因数分解:

$5^1\times {\mathrm{43}}^1\times {\mathrm{83}}^1\times {\mathrm{1129}}^1$

素因数の和:1260

約数の個数: 16

約数和(自身を含む): 25058880

約数和(自身を除く): 4911875

約数列:

[1, 5, 43, 83, 215, 415, 1129, 3569, 5645, 17845, 48547, 93707, 242735, 468535, 4029401, 20147005]

約数ペア:

[(1, 20147005), (5, 4029401), (43, 468535), (83, 242735), (215, 93707), (415, 48547), (1129, 17845), (3569, 5645)]