128264120

素因数分解:

$2^3\times 5^1\times {\mathrm{613}}^1\times {\mathrm{5231}}^1$

素因数の和:5855

約数の個数: 32

約数和(自身を含む): 289120320

約数和(自身を除く): 160856200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 613, 1226, 2452, 3065, 4904, 5231, 6130, 10462, 12260, 20924, 24520, 26155, 41848, 52310, 104620, 209240, 3206603, 6413206, 12826412, 16033015, 25652824, 32066030, 64132060, 128264120]

約数ペア:

[(1, 128264120), (2, 64132060), (4, 32066030), (5, 25652824), (8, 16033015), (10, 12826412), (20, 6413206), (40, 3206603), (613, 209240), (1226, 104620), (2452, 52310), (3065, 41848), (4904, 26155), (5231, 24520), (6130, 20924), (10462, 12260)]