19660060

素因数分解:

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

素因数の和:443

約数の個数: 72

約数和(自身を含む): 49926240

約数和(自身を除く): 30266180

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 28, 35, 38, 70, 76, 95, 133, 140, 190, 266, 361, 380, 389, 532, 665, 722, 778, 1330, 1444, 1556, 1805, 1945, 2527, 2660, 2723, 3610, 3890, 5054, 5446, 7220, 7391, 7780, 10108, 10892, 12635, 13615, 14782, 25270, 27230, 29564, 36955, 50540, 51737, 54460, 73910, 103474, 140429, 147820, 206948, 258685, 280858, 517370, 561716, 702145, 983003, 1034740, 1404290, 1966006, 2808580, 3932012, 4915015, 9830030, 19660060]

約数ペア:

[(1, 19660060), (2, 9830030), (4, 4915015), (5, 3932012), (7, 2808580), (10, 1966006), (14, 1404290), (19, 1034740), (20, 983003), (28, 702145), (35, 561716), (38, 517370), (70, 280858), (76, 258685), (95, 206948), (133, 147820), (140, 140429), (190, 103474), (266, 73910), (361, 54460), (380, 51737), (389, 50540), (532, 36955), (665, 29564), (722, 27230), (778, 25270), (1330, 14782), (1444, 13615), (1556, 12635), (1805, 10892), (1945, 10108), (2527, 7780), (2660, 7391), (2723, 7220), (3610, 5446), (3890, 5054)]