2641000

素因数分解:

$2^3\times 5^3\times {\mathrm{19}}^1\times {\mathrm{139}}^1$

素因数の和:179

約数の個数: 64

約数和(自身を含む): 6552000

約数和(自身を除く): 3911000

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 25, 38, 40, 50, 76, 95, 100, 125, 139, 152, 190, 200, 250, 278, 380, 475, 500, 556, 695, 760, 950, 1000, 1112, 1390, 1900, 2375, 2641, 2780, 3475, 3800, 4750, 5282, 5560, 6950, 9500, 10564, 13205, 13900, 17375, 19000, 21128, 26410, 27800, 34750, 52820, 66025, 69500, 105640, 132050, 139000, 264100, 330125, 528200, 660250, 1320500, 2641000]

約数ペア:

[(1, 2641000), (2, 1320500), (4, 660250), (5, 528200), (8, 330125), (10, 264100), (19, 139000), (20, 132050), (25, 105640), (38, 69500), (40, 66025), (50, 52820), (76, 34750), (95, 27800), (100, 26410), (125, 21128), (139, 19000), (152, 17375), (190, 13900), (200, 13205), (250, 10564), (278, 9500), (380, 6950), (475, 5560), (500, 5282), (556, 4750), (695, 3800), (760, 3475), (950, 2780), (1000, 2641), (1112, 2375), (1390, 1900)]