20281247020

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{11393959}}^1$

素因数の和:11394057

約数の個数: 24

約数和(自身を含む): 43069168800

約数和(自身を除く): 22787921780

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 356, 445, 890, 1780, 11393959, 22787918, 45575836, 56969795, 113939590, 227879180, 1014062351, 2028124702, 4056249404, 5070311755, 10140623510, 20281247020]

約数ペア:

[(1, 20281247020), (2, 10140623510), (4, 5070311755), (5, 4056249404), (10, 2028124702), (20, 1014062351), (89, 227879180), (178, 113939590), (356, 56969795), (445, 45575836), (890, 22787918), (1780, 11393959)]