2005200640

素因数分解:

$2^8\times 5^1\times {\mathrm{617}}^1\times {\mathrm{2539}}^1$

素因数の和:3177

約数の個数: 72

約数和(自身を含む): 4812761520

約数和(自身を除く): 2807560880

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 617, 640, 1234, 1280, 2468, 2539, 3085, 4936, 5078, 6170, 9872, 10156, 12340, 12695, 19744, 20312, 24680, 25390, 39488, 40624, 49360, 50780, 78976, 81248, 98720, 101560, 157952, 162496, 197440, 203120, 324992, 394880, 406240, 649984, 789760, 812480, 1566563, 1624960, 3133126, 3249920, 6266252, 7832815, 12532504, 15665630, 25065008, 31331260, 50130016, 62662520, 100260032, 125325040, 200520064, 250650080, 401040128, 501300160, 1002600320, 2005200640]

約数ペア:

[(1, 2005200640), (2, 1002600320), (4, 501300160), (5, 401040128), (8, 250650080), (10, 200520064), (16, 125325040), (20, 100260032), (32, 62662520), (40, 50130016), (64, 31331260), (80, 25065008), (128, 15665630), (160, 12532504), (256, 7832815), (320, 6266252), (617, 3249920), (640, 3133126), (1234, 1624960), (1280, 1566563), (2468, 812480), (2539, 789760), (3085, 649984), (4936, 406240), (5078, 394880), (6170, 324992), (9872, 203120), (10156, 197440), (12340, 162496), (12695, 157952), (19744, 101560), (20312, 98720), (24680, 81248), (25390, 78976), (39488, 50780), (40624, 49360)]