12739840

素因数分解:

$2^8\times 5^1\times {\mathrm{37}}^1\times {\mathrm{269}}^1$

素因数の和:327

約数の個数: 72

約数和(自身を含む): 31457160

約数和(自身を除く): 18717320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 37, 40, 64, 74, 80, 128, 148, 160, 185, 256, 269, 296, 320, 370, 538, 592, 640, 740, 1076, 1184, 1280, 1345, 1480, 2152, 2368, 2690, 2960, 4304, 4736, 5380, 5920, 8608, 9472, 9953, 10760, 11840, 17216, 19906, 21520, 23680, 34432, 39812, 43040, 47360, 49765, 68864, 79624, 86080, 99530, 159248, 172160, 199060, 318496, 344320, 398120, 636992, 796240, 1273984, 1592480, 2547968, 3184960, 6369920, 12739840]

約数ペア:

[(1, 12739840), (2, 6369920), (4, 3184960), (5, 2547968), (8, 1592480), (10, 1273984), (16, 796240), (20, 636992), (32, 398120), (37, 344320), (40, 318496), (64, 199060), (74, 172160), (80, 159248), (128, 99530), (148, 86080), (160, 79624), (185, 68864), (256, 49765), (269, 47360), (296, 43040), (320, 39812), (370, 34432), (538, 23680), (592, 21520), (640, 19906), (740, 17216), (1076, 11840), (1184, 10760), (1280, 9953), (1345, 9472), (1480, 8608), (2152, 5920), (2368, 5380), (2690, 4736), (2960, 4304)]