18225087140

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{787601}}^1$

素因数の和:787712

約数の個数: 48

約数和(自身を含む): 41679897840

約数和(自身を除く): 23454810700

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 89, 130, 178, 260, 356, 445, 890, 1157, 1780, 2314, 4628, 5785, 11570, 23140, 787601, 1575202, 3150404, 3938005, 7876010, 10238813, 15752020, 20477626, 40955252, 51194065, 70096489, 102388130, 140192978, 204776260, 280385956, 350482445, 700964890, 911254357, 1401929780, 1822508714, 3645017428, 4556271785, 9112543570, 18225087140]

約数ペア:

[(1, 18225087140), (2, 9112543570), (4, 4556271785), (5, 3645017428), (10, 1822508714), (13, 1401929780), (20, 911254357), (26, 700964890), (52, 350482445), (65, 280385956), (89, 204776260), (130, 140192978), (178, 102388130), (260, 70096489), (356, 51194065), (445, 40955252), (890, 20477626), (1157, 15752020), (1780, 10238813), (2314, 7876010), (4628, 3938005), (5785, 3150404), (11570, 1575202), (23140, 787601)]