254949520

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{197}}^1\times {\mathrm{2311}}^1$

素因数の和:2528

約数の個数: 80

約数和(自身を含む): 681170688

約数和(自身を除く): 426221168

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 197, 280, 394, 560, 788, 985, 1379, 1576, 1970, 2311, 2758, 3152, 3940, 4622, 5516, 6895, 7880, 9244, 11032, 11555, 13790, 15760, 16177, 18488, 22064, 23110, 27580, 32354, 36976, 46220, 55160, 64708, 80885, 92440, 110320, 129416, 161770, 184880, 258832, 323540, 455267, 647080, 910534, 1294160, 1821068, 2276335, 3186869, 3642136, 4552670, 6373738, 7284272, 9105340, 12747476, 15934345, 18210680, 25494952, 31868690, 36421360, 50989904, 63737380, 127474760, 254949520]

約数ペア:

[(1, 254949520), (2, 127474760), (4, 63737380), (5, 50989904), (7, 36421360), (8, 31868690), (10, 25494952), (14, 18210680), (16, 15934345), (20, 12747476), (28, 9105340), (35, 7284272), (40, 6373738), (56, 4552670), (70, 3642136), (80, 3186869), (112, 2276335), (140, 1821068), (197, 1294160), (280, 910534), (394, 647080), (560, 455267), (788, 323540), (985, 258832), (1379, 184880), (1576, 161770), (1970, 129416), (2311, 110320), (2758, 92440), (3152, 80885), (3940, 64708), (4622, 55160), (5516, 46220), (6895, 36976), (7880, 32354), (9244, 27580), (11032, 23110), (11555, 22064), (13790, 18488), (15760, 16177)]