728115280

素因数分解:

$2^4\times 5^1\times {\mathrm{9101441}}^1$

素因数の和:9101454

約数の個数: 20

約数和(自身を含む): 1692868212

約数和(自身を除く): 964752932

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 9101441, 18202882, 36405764, 45507205, 72811528, 91014410, 145623056, 182028820, 364057640, 728115280]

約数ペア:

[(1, 728115280), (2, 364057640), (4, 182028820), (5, 145623056), (8, 91014410), (10, 72811528), (16, 45507205), (20, 36405764), (40, 18202882), (80, 9101441)]