640476264560

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{35491}}^1\times {\mathrm{20507}}^1$

素因数の和:56022

約数の個数: 80

約数和(自身を含む): 1624605697152

約数和(自身を除く): 984129432592

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 20507, 35491, 41014, 70982, 82028, 102535, 141964, 164056, 177455, 205070, 225577, 283928, 328112, 354910, 390401, 410140, 451154, 567856, 709820, 780802, 820280, 902308, 1127885, 1419640, 1561604, 1640560, 1804616, 1952005, 2255770, 2839280, 3123208, 3609232, 3904010, 4511540, 6246416, 7808020, 9023080, 15616040, 18046160, 31232080, 727813937, 1455627874, 2911255748, 3639069685, 5822511496, 7278139370, 8005953307, 11645022992, 14556278740, 16011906614, 29112557480, 32023813228, 40029766535, 58225114960, 64047626456, 80059533070, 128095252912, 160119066140, 320238132280, 640476264560]

約数ペア:

[(1, 640476264560), (2, 320238132280), (4, 160119066140), (5, 128095252912), (8, 80059533070), (10, 64047626456), (11, 58225114960), (16, 40029766535), (20, 32023813228), (22, 29112557480), (40, 16011906614), (44, 14556278740), (55, 11645022992), (80, 8005953307), (88, 7278139370), (110, 5822511496), (176, 3639069685), (220, 2911255748), (440, 1455627874), (880, 727813937), (20507, 31232080), (35491, 18046160), (41014, 15616040), (70982, 9023080), (82028, 7808020), (102535, 6246416), (141964, 4511540), (164056, 3904010), (177455, 3609232), (205070, 3123208), (225577, 2839280), (283928, 2255770), (328112, 1952005), (354910, 1804616), (390401, 1640560), (410140, 1561604), (451154, 1419640), (567856, 1127885), (709820, 902308), (780802, 820280)]