81101360

素因数分解:

$2^4\times 5^1\times {\mathrm{1013767}}^1$

素因数の和:1013780

約数の個数: 20

約数和(自身を含む): 188560848

約数和(自身を除く): 107459488

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1013767, 2027534, 4055068, 5068835, 8110136, 10137670, 16220272, 20275340, 40550680, 81101360]

約数ペア:

[(1, 81101360), (2, 40550680), (4, 20275340), (5, 16220272), (8, 10137670), (10, 8110136), (16, 5068835), (20, 4055068), (40, 2027534), (80, 1013767)]