2757861520

素因数分解:

$2^4\times 5^1\times {\mathrm{71}}^1\times {\mathrm{487}}^1\times {\mathrm{997}}^1$

素因数の和:1568

約数の個数: 80

約数和(自身を含む): 6522225408

約数和(自身を除く): 3764363888

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 71, 80, 142, 284, 355, 487, 568, 710, 974, 997, 1136, 1420, 1948, 1994, 2435, 2840, 3896, 3988, 4870, 4985, 5680, 7792, 7976, 9740, 9970, 15952, 19480, 19940, 34577, 38960, 39880, 69154, 70787, 79760, 138308, 141574, 172885, 276616, 283148, 345770, 353935, 485539, 553232, 566296, 691540, 707870, 971078, 1132592, 1383080, 1415740, 1942156, 2427695, 2766160, 2831480, 3884312, 4855390, 5662960, 7768624, 9710780, 19421560, 34473269, 38843120, 68946538, 137893076, 172366345, 275786152, 344732690, 551572304, 689465380, 1378930760, 2757861520]

約数ペア:

[(1, 2757861520), (2, 1378930760), (4, 689465380), (5, 551572304), (8, 344732690), (10, 275786152), (16, 172366345), (20, 137893076), (40, 68946538), (71, 38843120), (80, 34473269), (142, 19421560), (284, 9710780), (355, 7768624), (487, 5662960), (568, 4855390), (710, 3884312), (974, 2831480), (997, 2766160), (1136, 2427695), (1420, 1942156), (1948, 1415740), (1994, 1383080), (2435, 1132592), (2840, 971078), (3896, 707870), (3988, 691540), (4870, 566296), (4985, 553232), (5680, 485539), (7792, 353935), (7976, 345770), (9740, 283148), (9970, 276616), (15952, 172885), (19480, 141574), (19940, 138308), (34577, 79760), (38960, 70787), (39880, 69154)]