1101440

素因数分解:

$2^7\times 5^1\times {\mathrm{1721}}^1$

素因数の和:1740

約数の個数: 32

約数和(自身を含む): 2634660

約数和(自身を除く): 1533220

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 1721, 3442, 6884, 8605, 13768, 17210, 27536, 34420, 55072, 68840, 110144, 137680, 220288, 275360, 550720, 1101440]

約数ペア:

[(1, 1101440), (2, 550720), (4, 275360), (5, 220288), (8, 137680), (10, 110144), (16, 68840), (20, 55072), (32, 34420), (40, 27536), (64, 17210), (80, 13768), (128, 8605), (160, 6884), (320, 3442), (640, 1721)]