3961061680

素因数分解:

$2^4\times 5^1\times {\mathrm{49513271}}^1$

素因数の和:49513284

約数の個数: 20

約数和(自身を含む): 9209468592

約数和(自身を除く): 5248406912

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 49513271, 99026542, 198053084, 247566355, 396106168, 495132710, 792212336, 990265420, 1980530840, 3961061680]

約数ペア:

[(1, 3961061680), (2, 1980530840), (4, 990265420), (5, 792212336), (8, 495132710), (10, 396106168), (16, 247566355), (20, 198053084), (40, 99026542), (80, 49513271)]