808768640

素因数分解:

$2^7\times 5^1\times {\mathrm{1263701}}^1$

素因数の和:1263720

約数の個数: 32

約数和(自身を含む): 1933464060

約数和(自身を除く): 1124695420

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 1263701, 2527402, 5054804, 6318505, 10109608, 12637010, 20219216, 25274020, 40438432, 50548040, 80876864, 101096080, 161753728, 202192160, 404384320, 808768640]

約数ペア:

[(1, 808768640), (2, 404384320), (4, 202192160), (5, 161753728), (8, 101096080), (10, 80876864), (16, 50548040), (20, 40438432), (32, 25274020), (40, 20219216), (64, 12637010), (80, 10109608), (128, 6318505), (160, 5054804), (320, 2527402), (640, 1263701)]