4138960

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{389}}^1$

素因数の和:428

約数の個数: 80

約数和(自身を含む): 11606400

約数和(自身を除く): 7467440

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 19, 20, 28, 35, 38, 40, 56, 70, 76, 80, 95, 112, 133, 140, 152, 190, 266, 280, 304, 380, 389, 532, 560, 665, 760, 778, 1064, 1330, 1520, 1556, 1945, 2128, 2660, 2723, 3112, 3890, 5320, 5446, 6224, 7391, 7780, 10640, 10892, 13615, 14782, 15560, 21784, 27230, 29564, 31120, 36955, 43568, 51737, 54460, 59128, 73910, 103474, 108920, 118256, 147820, 206948, 217840, 258685, 295640, 413896, 517370, 591280, 827792, 1034740, 2069480, 4138960]

約数ペア:

[(1, 4138960), (2, 2069480), (4, 1034740), (5, 827792), (7, 591280), (8, 517370), (10, 413896), (14, 295640), (16, 258685), (19, 217840), (20, 206948), (28, 147820), (35, 118256), (38, 108920), (40, 103474), (56, 73910), (70, 59128), (76, 54460), (80, 51737), (95, 43568), (112, 36955), (133, 31120), (140, 29564), (152, 27230), (190, 21784), (266, 15560), (280, 14782), (304, 13615), (380, 10892), (389, 10640), (532, 7780), (560, 7391), (665, 6224), (760, 5446), (778, 5320), (1064, 3890), (1330, 3112), (1520, 2723), (1556, 2660), (1945, 2128)]