450640

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{131}}^1$

素因数の和:187

約数の個数: 40

約数和(自身を含む): 1080288

約数和(自身を除く): 629648

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 80, 86, 131, 172, 215, 262, 344, 430, 524, 655, 688, 860, 1048, 1310, 1720, 2096, 2620, 3440, 5240, 5633, 10480, 11266, 22532, 28165, 45064, 56330, 90128, 112660, 225320, 450640]

約数ペア:

[(1, 450640), (2, 225320), (4, 112660), (5, 90128), (8, 56330), (10, 45064), (16, 28165), (20, 22532), (40, 11266), (43, 10480), (80, 5633), (86, 5240), (131, 3440), (172, 2620), (215, 2096), (262, 1720), (344, 1310), (430, 1048), (524, 860), (655, 688)]