140621440

素因数分解:

$2^7\times 5^1\times {\mathrm{219721}}^1$

素因数の和:219740

約数の個数: 32

約数和(自身を含む): 336174660

約数和(自身を除く): 195553220

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 219721, 439442, 878884, 1098605, 1757768, 2197210, 3515536, 4394420, 7031072, 8788840, 14062144, 17577680, 28124288, 35155360, 70310720, 140621440]

約数ペア:

[(1, 140621440), (2, 70310720), (4, 35155360), (5, 28124288), (8, 17577680), (10, 14062144), (16, 8788840), (20, 7031072), (32, 4394420), (40, 3515536), (64, 2197210), (80, 1757768), (128, 1098605), (160, 878884), (320, 439442), (640, 219721)]