2019012020

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{3256471}}^1$

素因数の和:3256511

約数の個数: 24

約数和(自身を含む): 4376698368

約数和(自身を除く): 2357686348

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 3256471, 6512942, 13025884, 16282355, 32564710, 65129420, 100950601, 201901202, 403802404, 504753005, 1009506010, 2019012020]

約数ペア:

[(1, 2019012020), (2, 1009506010), (4, 504753005), (5, 403802404), (10, 201901202), (20, 100950601), (31, 65129420), (62, 32564710), (124, 16282355), (155, 13025884), (310, 6512942), (620, 3256471)]