66488660

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{6689}}^1$

素因数の和:6776

約数の個数: 48

約数和(自身を含む): 161844480

約数和(自身を除く): 95355820

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 71, 140, 142, 284, 355, 497, 710, 994, 1420, 1988, 2485, 4970, 6689, 9940, 13378, 26756, 33445, 46823, 66890, 93646, 133780, 187292, 234115, 468230, 474919, 936460, 949838, 1899676, 2374595, 3324433, 4749190, 6648866, 9498380, 13297732, 16622165, 33244330, 66488660]

約数ペア:

[(1, 66488660), (2, 33244330), (4, 16622165), (5, 13297732), (7, 9498380), (10, 6648866), (14, 4749190), (20, 3324433), (28, 2374595), (35, 1899676), (70, 949838), (71, 936460), (140, 474919), (142, 468230), (284, 234115), (355, 187292), (497, 133780), (710, 93646), (994, 66890), (1420, 46823), (1988, 33445), (2485, 26756), (4970, 13378), (6689, 9940)]