128247680

素因数分解:

$2^7\times 5^1\times {\mathrm{11}}^1\times {\mathrm{18217}}^1$

素因数の和:18247

約数の個数: 64

約数和(自身を含む): 334482480

約数和(自身を除く): 206234800

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 64, 80, 88, 110, 128, 160, 176, 220, 320, 352, 440, 640, 704, 880, 1408, 1760, 3520, 7040, 18217, 36434, 72868, 91085, 145736, 182170, 200387, 291472, 364340, 400774, 582944, 728680, 801548, 1001935, 1165888, 1457360, 1603096, 2003870, 2331776, 2914720, 3206192, 4007740, 5829440, 6412384, 8015480, 11658880, 12824768, 16030960, 25649536, 32061920, 64123840, 128247680]

約数ペア:

[(1, 128247680), (2, 64123840), (4, 32061920), (5, 25649536), (8, 16030960), (10, 12824768), (11, 11658880), (16, 8015480), (20, 6412384), (22, 5829440), (32, 4007740), (40, 3206192), (44, 2914720), (55, 2331776), (64, 2003870), (80, 1603096), (88, 1457360), (110, 1165888), (128, 1001935), (160, 801548), (176, 728680), (220, 582944), (320, 400774), (352, 364340), (440, 291472), (640, 200387), (704, 182170), (880, 145736), (1408, 91085), (1760, 72868), (3520, 36434), (7040, 18217)]