20806730

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{131}}^1\times {\mathrm{2269}}^1$

素因数の和:2414

約数の個数: 32

約数和(自身を含む): 43148160

約数和(自身を除く): 22341430

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 131, 262, 655, 917, 1310, 1834, 2269, 4538, 4585, 9170, 11345, 15883, 22690, 31766, 79415, 158830, 297239, 594478, 1486195, 2080673, 2972390, 4161346, 10403365, 20806730]

約数ペア:

[(1, 20806730), (2, 10403365), (5, 4161346), (7, 2972390), (10, 2080673), (14, 1486195), (35, 594478), (70, 297239), (131, 158830), (262, 79415), (655, 31766), (917, 22690), (1310, 15883), (1834, 11345), (2269, 9170), (4538, 4585)]