280817520

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{27211}}^1$

素因数の和:27270

約数の個数: 80

約数和(自身を含む): 890812032

約数和(自身を除く): 609994512

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 43, 48, 60, 80, 86, 120, 129, 172, 215, 240, 258, 344, 430, 516, 645, 688, 860, 1032, 1290, 1720, 2064, 2580, 3440, 5160, 10320, 27211, 54422, 81633, 108844, 136055, 163266, 217688, 272110, 326532, 408165, 435376, 544220, 653064, 816330, 1088440, 1170073, 1306128, 1632660, 2176880, 2340146, 3265320, 3510219, 4680292, 5850365, 6530640, 7020438, 9360584, 11700730, 14040876, 17551095, 18721168, 23401460, 28081752, 35102190, 46802920, 56163504, 70204380, 93605840, 140408760, 280817520]

約数ペア:

[(1, 280817520), (2, 140408760), (3, 93605840), (4, 70204380), (5, 56163504), (6, 46802920), (8, 35102190), (10, 28081752), (12, 23401460), (15, 18721168), (16, 17551095), (20, 14040876), (24, 11700730), (30, 9360584), (40, 7020438), (43, 6530640), (48, 5850365), (60, 4680292), (80, 3510219), (86, 3265320), (120, 2340146), (129, 2176880), (172, 1632660), (215, 1306128), (240, 1170073), (258, 1088440), (344, 816330), (430, 653064), (516, 544220), (645, 435376), (688, 408165), (860, 326532), (1032, 272110), (1290, 217688), (1720, 163266), (2064, 136055), (2580, 108844), (3440, 81633), (5160, 54422), (10320, 27211)]