20906120

素因数分解:

$2^3\times 5^1\times {\mathrm{157}}^1\times {\mathrm{3329}}^1$

素因数の和:3497

約数の個数: 32

約数和(自身を含む): 47352600

約数和(自身を除く): 26446480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 157, 314, 628, 785, 1256, 1570, 3140, 3329, 6280, 6658, 13316, 16645, 26632, 33290, 66580, 133160, 522653, 1045306, 2090612, 2613265, 4181224, 5226530, 10453060, 20906120]

約数ペア:

[(1, 20906120), (2, 10453060), (4, 5226530), (5, 4181224), (8, 2613265), (10, 2090612), (20, 1045306), (40, 522653), (157, 133160), (314, 66580), (628, 33290), (785, 26632), (1256, 16645), (1570, 13316), (3140, 6658), (3329, 6280)]