19883800

素因数分解:

$2^3\times 5^2\times {\mathrm{37}}^1\times {\mathrm{2687}}^1$

素因数の和:2740

約数の個数: 48

約数和(自身を含む): 47496960

約数和(自身を除く): 27613160

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 37, 40, 50, 74, 100, 148, 185, 200, 296, 370, 740, 925, 1480, 1850, 2687, 3700, 5374, 7400, 10748, 13435, 21496, 26870, 53740, 67175, 99419, 107480, 134350, 198838, 268700, 397676, 497095, 537400, 795352, 994190, 1988380, 2485475, 3976760, 4970950, 9941900, 19883800]

約数ペア:

[(1, 19883800), (2, 9941900), (4, 4970950), (5, 3976760), (8, 2485475), (10, 1988380), (20, 994190), (25, 795352), (37, 537400), (40, 497095), (50, 397676), (74, 268700), (100, 198838), (148, 134350), (185, 107480), (200, 99419), (296, 67175), (370, 53740), (740, 26870), (925, 21496), (1480, 13435), (1850, 10748), (2687, 7400), (3700, 5374)]