2865560

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{1009}}^1$

素因数の和:1091

約数の個数: 32

約数和(自身を含む): 6544800

約数和(自身を除く): 3679240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 355, 568, 710, 1009, 1420, 2018, 2840, 4036, 5045, 8072, 10090, 20180, 40360, 71639, 143278, 286556, 358195, 573112, 716390, 1432780, 2865560]

約数ペア:

[(1, 2865560), (2, 1432780), (4, 716390), (5, 573112), (8, 358195), (10, 286556), (20, 143278), (40, 71639), (71, 40360), (142, 20180), (284, 10090), (355, 8072), (568, 5045), (710, 4036), (1009, 2840), (1420, 2018)]