820180144

素因数分解:

$2^4\times 7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{12433}}^1$

素因数の和:12498

約数の個数: 80

約数和(自身を含む): 1973524480

約数和(自身を除く): 1153344336

約数列:

[1, 2, 4, 7, 8, 14, 16, 19, 28, 31, 38, 56, 62, 76, 112, 124, 133, 152, 217, 248, 266, 304, 434, 496, 532, 589, 868, 1064, 1178, 1736, 2128, 2356, 3472, 4123, 4712, 8246, 9424, 12433, 16492, 24866, 32984, 49732, 65968, 87031, 99464, 174062, 198928, 236227, 348124, 385423, 472454, 696248, 770846, 944908, 1392496, 1541692, 1653589, 1889816, 2697961, 3083384, 3307178, 3779632, 5395922, 6166768, 6614356, 7323037, 10791844, 13228712, 14646074, 21583688, 26457424, 29292148, 43167376, 51261259, 58584296, 102522518, 117168592, 205045036, 410090072, 820180144]

約数ペア:

[(1, 820180144), (2, 410090072), (4, 205045036), (7, 117168592), (8, 102522518), (14, 58584296), (16, 51261259), (19, 43167376), (28, 29292148), (31, 26457424), (38, 21583688), (56, 14646074), (62, 13228712), (76, 10791844), (112, 7323037), (124, 6614356), (133, 6166768), (152, 5395922), (217, 3779632), (248, 3307178), (266, 3083384), (304, 2697961), (434, 1889816), (496, 1653589), (532, 1541692), (589, 1392496), (868, 944908), (1064, 770846), (1178, 696248), (1736, 472454), (2128, 385423), (2356, 348124), (3472, 236227), (4123, 198928), (4712, 174062), (8246, 99464), (9424, 87031), (12433, 65968), (16492, 49732), (24866, 32984)]