91223680

素因数分解:

$2^7\times 5^1\times {\mathrm{142537}}^1$

素因数の和:142556

約数の個数: 32

約数和(自身を含む): 218083140

約数和(自身を除く): 126859460

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 142537, 285074, 570148, 712685, 1140296, 1425370, 2280592, 2850740, 4561184, 5701480, 9122368, 11402960, 18244736, 22805920, 45611840, 91223680]

約数ペア:

[(1, 91223680), (2, 45611840), (4, 22805920), (5, 18244736), (8, 11402960), (10, 9122368), (16, 5701480), (20, 4561184), (32, 2850740), (40, 2280592), (64, 1425370), (80, 1140296), (128, 712685), (160, 570148), (320, 285074), (640, 142537)]