2019071920

素因数分解:

$2^4\times 5^1\times {\mathrm{103}}^1\times {\mathrm{245033}}^1$

素因数の和:245149

約数の個数: 40

約数和(自身を含む): 4739937696

約数和(自身を除く): 2720865776

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 103, 206, 412, 515, 824, 1030, 1648, 2060, 4120, 8240, 245033, 490066, 980132, 1225165, 1960264, 2450330, 3920528, 4900660, 9801320, 19602640, 25238399, 50476798, 100953596, 126191995, 201907192, 252383990, 403814384, 504767980, 1009535960, 2019071920]

約数ペア:

[(1, 2019071920), (2, 1009535960), (4, 504767980), (5, 403814384), (8, 252383990), (10, 201907192), (16, 126191995), (20, 100953596), (40, 50476798), (80, 25238399), (103, 19602640), (206, 9801320), (412, 4900660), (515, 3920528), (824, 2450330), (1030, 1960264), (1648, 1225165), (2060, 980132), (4120, 490066), (8240, 245033)]