81612160

素因数分解:

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

素因数の和:18243

約数の個数: 64

約数和(自身を含む): 222988320

約数和(自身を除く): 141376160

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 128, 140, 160, 224, 280, 320, 448, 560, 640, 896, 1120, 2240, 4480, 18217, 36434, 72868, 91085, 127519, 145736, 182170, 255038, 291472, 364340, 510076, 582944, 637595, 728680, 1020152, 1165888, 1275190, 1457360, 2040304, 2331776, 2550380, 2914720, 4080608, 5100760, 5829440, 8161216, 10201520, 11658880, 16322432, 20403040, 40806080, 81612160]

約数ペア:

[(1, 81612160), (2, 40806080), (4, 20403040), (5, 16322432), (7, 11658880), (8, 10201520), (10, 8161216), (14, 5829440), (16, 5100760), (20, 4080608), (28, 2914720), (32, 2550380), (35, 2331776), (40, 2040304), (56, 1457360), (64, 1275190), (70, 1165888), (80, 1020152), (112, 728680), (128, 637595), (140, 582944), (160, 510076), (224, 364340), (280, 291472), (320, 255038), (448, 182170), (560, 145736), (640, 127519), (896, 91085), (1120, 72868), (2240, 36434), (4480, 18217)]