20131611320

素因数分解:

$2^3\times 5^1\times {\mathrm{89}}^1\times {\mathrm{5654947}}^1$

素因数の和:5655047

約数の個数: 32

約数和(自身を含む): 45805078800

約数和(自身を除く): 25673467480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 89, 178, 356, 445, 712, 890, 1780, 3560, 5654947, 11309894, 22619788, 28274735, 45239576, 56549470, 113098940, 226197880, 503290283, 1006580566, 2013161132, 2516451415, 4026322264, 5032902830, 10065805660, 20131611320]

約数ペア:

[(1, 20131611320), (2, 10065805660), (4, 5032902830), (5, 4026322264), (8, 2516451415), (10, 2013161132), (20, 1006580566), (40, 503290283), (89, 226197880), (178, 113098940), (356, 56549470), (445, 45239576), (712, 28274735), (890, 22619788), (1780, 11309894), (3560, 5654947)]