20807065

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{367}}^1$

素因数の和:441

約数の個数: 32

約数和(自身を含む): 28615680

約数和(自身を除く): 7808615

約数列:

[1, 5, 17, 23, 29, 85, 115, 145, 367, 391, 493, 667, 1835, 1955, 2465, 3335, 6239, 8441, 10643, 11339, 31195, 42205, 53215, 56695, 143497, 180931, 244789, 717485, 904655, 1223945, 4161413, 20807065]

約数ペア:

[(1, 20807065), (5, 4161413), (17, 1223945), (23, 904655), (29, 717485), (85, 244789), (115, 180931), (145, 143497), (367, 56695), (391, 53215), (493, 42205), (667, 31195), (1835, 11339), (1955, 10643), (2465, 8441), (3335, 6239)]