2079292720

素因数分解:

$2^4\times 5^1\times {\mathrm{109}}^1\times {\mathrm{238451}}^1$

素因数の和:238573

約数の個数: 40

約数和(自身を含む): 4878727920

約数和(自身を除く): 2799435200

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 109, 218, 436, 545, 872, 1090, 1744, 2180, 4360, 8720, 238451, 476902, 953804, 1192255, 1907608, 2384510, 3815216, 4769020, 9538040, 19076080, 25991159, 51982318, 103964636, 129955795, 207929272, 259911590, 415858544, 519823180, 1039646360, 2079292720]

約数ペア:

[(1, 2079292720), (2, 1039646360), (4, 519823180), (5, 415858544), (8, 259911590), (10, 207929272), (16, 129955795), (20, 103964636), (40, 51982318), (80, 25991159), (109, 19076080), (218, 9538040), (436, 4769020), (545, 3815216), (872, 2384510), (1090, 1907608), (1744, 1192255), (2180, 953804), (4360, 476902), (8720, 238451)]