20797160

素因数分解:

$2^3\times 5^1\times {\mathrm{277}}^1\times {\mathrm{1877}}^1$

素因数の和:2165

約数の個数: 32

約数和(自身を含む): 46987560

約数和(自身を除く): 26190400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 277, 554, 1108, 1385, 1877, 2216, 2770, 3754, 5540, 7508, 9385, 11080, 15016, 18770, 37540, 75080, 519929, 1039858, 2079716, 2599645, 4159432, 5199290, 10398580, 20797160]

約数ペア:

[(1, 20797160), (2, 10398580), (4, 5199290), (5, 4159432), (8, 2599645), (10, 2079716), (20, 1039858), (40, 519929), (277, 75080), (554, 37540), (1108, 18770), (1385, 15016), (1877, 11080), (2216, 9385), (2770, 7508), (3754, 5540)]