8640660

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{2939}}^1$

素因数の和:2965

約数の個数: 72

約数和(自身を含む): 28153440

約数和(自身を除く): 19512780

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 84, 98, 105, 140, 147, 196, 210, 245, 294, 420, 490, 588, 735, 980, 1470, 2939, 2940, 5878, 8817, 11756, 14695, 17634, 20573, 29390, 35268, 41146, 44085, 58780, 61719, 82292, 88170, 102865, 123438, 144011, 176340, 205730, 246876, 288022, 308595, 411460, 432033, 576044, 617190, 720055, 864066, 1234380, 1440110, 1728132, 2160165, 2880220, 4320330, 8640660]

約数ペア:

[(1, 8640660), (2, 4320330), (3, 2880220), (4, 2160165), (5, 1728132), (6, 1440110), (7, 1234380), (10, 864066), (12, 720055), (14, 617190), (15, 576044), (20, 432033), (21, 411460), (28, 308595), (30, 288022), (35, 246876), (42, 205730), (49, 176340), (60, 144011), (70, 123438), (84, 102865), (98, 88170), (105, 82292), (140, 61719), (147, 58780), (196, 44085), (210, 41146), (245, 35268), (294, 29390), (420, 20573), (490, 17634), (588, 14695), (735, 11756), (980, 8817), (1470, 5878), (2939, 2940)]