220163420

素因数分解:

$2^2\times 5^1\times {\mathrm{431}}^1\times {\mathrm{25541}}^1$

素因数の和:25981

約数の個数: 24

約数和(自身を含む): 463434048

約数和(自身を除く): 243270628

約数列:

[1, 2, 4, 5, 10, 20, 431, 862, 1724, 2155, 4310, 8620, 25541, 51082, 102164, 127705, 255410, 510820, 11008171, 22016342, 44032684, 55040855, 110081710, 220163420]

約数ペア:

[(1, 220163420), (2, 110081710), (4, 55040855), (5, 44032684), (10, 22016342), (20, 11008171), (431, 510820), (862, 255410), (1724, 127705), (2155, 102164), (4310, 51082), (8620, 25541)]