7243180

素因数分解:

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

素因数の和:431

約数の個数: 72

約数和(自身を含む): 18673200

約数和(自身を除く): 11430020

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 28, 35, 38, 49, 70, 76, 95, 98, 133, 140, 190, 196, 245, 266, 380, 389, 490, 532, 665, 778, 931, 980, 1330, 1556, 1862, 1945, 2660, 2723, 3724, 3890, 4655, 5446, 7391, 7780, 9310, 10892, 13615, 14782, 18620, 19061, 27230, 29564, 36955, 38122, 51737, 54460, 73910, 76244, 95305, 103474, 147820, 190610, 206948, 258685, 362159, 381220, 517370, 724318, 1034740, 1448636, 1810795, 3621590, 7243180]

約数ペア:

[(1, 7243180), (2, 3621590), (4, 1810795), (5, 1448636), (7, 1034740), (10, 724318), (14, 517370), (19, 381220), (20, 362159), (28, 258685), (35, 206948), (38, 190610), (49, 147820), (70, 103474), (76, 95305), (95, 76244), (98, 73910), (133, 54460), (140, 51737), (190, 38122), (196, 36955), (245, 29564), (266, 27230), (380, 19061), (389, 18620), (490, 14782), (532, 13615), (665, 10892), (778, 9310), (931, 7780), (980, 7391), (1330, 5446), (1556, 4655), (1862, 3890), (1945, 3724), (2660, 2723)]