18263680

素因数分解:

$2^7\times 5^1\times {\mathrm{28537}}^1$

素因数の和:28556

約数の個数: 32

約数和(自身を含む): 43663140

約数和(自身を除く): 25399460

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 28537, 57074, 114148, 142685, 228296, 285370, 456592, 570740, 913184, 1141480, 1826368, 2282960, 3652736, 4565920, 9131840, 18263680]

約数ペア:

[(1, 18263680), (2, 9131840), (4, 4565920), (5, 3652736), (8, 2282960), (10, 1826368), (16, 1141480), (20, 913184), (32, 570740), (40, 456592), (64, 285370), (80, 228296), (128, 142685), (160, 114148), (320, 57074), (640, 28537)]