89994880

素因数分解:

$2^7\times 5^1\times {\mathrm{140617}}^1$

素因数の和:140636

約数の個数: 32

約数和(自身を含む): 215145540

約数和(自身を除く): 125150660

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 140617, 281234, 562468, 703085, 1124936, 1406170, 2249872, 2812340, 4499744, 5624680, 8999488, 11249360, 17998976, 22498720, 44997440, 89994880]

約数ペア:

[(1, 89994880), (2, 44997440), (4, 22498720), (5, 17998976), (8, 11249360), (10, 8999488), (16, 5624680), (20, 4499744), (32, 2812340), (40, 2249872), (64, 1406170), (80, 1124936), (128, 703085), (160, 562468), (320, 281234), (640, 140617)]