130768720

素因数分解:

$2^4\times 5^1\times {\mathrm{1634609}}^1$

素因数の和:1634622

約数の個数: 20

約数和(自身を含む): 304037460

約数和(自身を除く): 173268740

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1634609, 3269218, 6538436, 8173045, 13076872, 16346090, 26153744, 32692180, 65384360, 130768720]

約数ペア:

[(1, 130768720), (2, 65384360), (4, 32692180), (5, 26153744), (8, 16346090), (10, 13076872), (16, 8173045), (20, 6538436), (40, 3269218), (80, 1634609)]