7872340

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{29}}^1\times {\mathrm{277}}^1$

素因数の和:329

約数の個数: 72

約数和(自身を含む): 19965960

約数和(自身を除く): 12093620

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 29, 35, 49, 58, 70, 98, 116, 140, 145, 196, 203, 245, 277, 290, 406, 490, 554, 580, 812, 980, 1015, 1108, 1385, 1421, 1939, 2030, 2770, 2842, 3878, 4060, 5540, 5684, 7105, 7756, 8033, 9695, 13573, 14210, 16066, 19390, 27146, 28420, 32132, 38780, 40165, 54292, 56231, 67865, 80330, 112462, 135730, 160660, 224924, 271460, 281155, 393617, 562310, 787234, 1124620, 1574468, 1968085, 3936170, 7872340]

約数ペア:

[(1, 7872340), (2, 3936170), (4, 1968085), (5, 1574468), (7, 1124620), (10, 787234), (14, 562310), (20, 393617), (28, 281155), (29, 271460), (35, 224924), (49, 160660), (58, 135730), (70, 112462), (98, 80330), (116, 67865), (140, 56231), (145, 54292), (196, 40165), (203, 38780), (245, 32132), (277, 28420), (290, 27146), (406, 19390), (490, 16066), (554, 14210), (580, 13573), (812, 9695), (980, 8033), (1015, 7756), (1108, 7105), (1385, 5684), (1421, 5540), (1939, 4060), (2030, 3878), (2770, 2842)]