662640

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{251}}^1$

素因数の和:278

約数の個数: 80

約数和(自身を含む): 2249856

約数和(自身を除く): 1587216

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 16, 20, 22, 24, 30, 33, 40, 44, 48, 55, 60, 66, 80, 88, 110, 120, 132, 165, 176, 220, 240, 251, 264, 330, 440, 502, 528, 660, 753, 880, 1004, 1255, 1320, 1506, 2008, 2510, 2640, 2761, 3012, 3765, 4016, 5020, 5522, 6024, 7530, 8283, 10040, 11044, 12048, 13805, 15060, 16566, 20080, 22088, 27610, 30120, 33132, 41415, 44176, 55220, 60240, 66264, 82830, 110440, 132528, 165660, 220880, 331320, 662640]

約数ペア:

[(1, 662640), (2, 331320), (3, 220880), (4, 165660), (5, 132528), (6, 110440), (8, 82830), (10, 66264), (11, 60240), (12, 55220), (15, 44176), (16, 41415), (20, 33132), (22, 30120), (24, 27610), (30, 22088), (33, 20080), (40, 16566), (44, 15060), (48, 13805), (55, 12048), (60, 11044), (66, 10040), (80, 8283), (88, 7530), (110, 6024), (120, 5522), (132, 5020), (165, 4016), (176, 3765), (220, 3012), (240, 2761), (251, 2640), (264, 2510), (330, 2008), (440, 1506), (502, 1320), (528, 1255), (660, 1004), (753, 880)]