13109420

素因数分解:

$2^2\times 5^1\times {\mathrm{655471}}^1$

素因数の和:655480

約数の個数: 12

約数和(自身を含む): 27529824

約数和(自身を除く): 14420404

約数列:

[1, 2, 4, 5, 10, 20, 655471, 1310942, 2621884, 3277355, 6554710, 13109420]

約数ペア:

[(1, 13109420), (2, 6554710), (4, 3277355), (5, 2621884), (10, 1310942), (20, 655471)]