426681320

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{820541}}^1$

素因数の和:820565

約数の個数: 32

約数和(自身を含む): 1033882920

約数和(自身を除く): 607201600

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 820541, 1641082, 3282164, 4102705, 6564328, 8205410, 10667033, 16410820, 21334066, 32821640, 42668132, 53335165, 85336264, 106670330, 213340660, 426681320]

約数ペア:

[(1, 426681320), (2, 213340660), (4, 106670330), (5, 85336264), (8, 53335165), (10, 42668132), (13, 32821640), (20, 21334066), (26, 16410820), (40, 10667033), (52, 8205410), (65, 6564328), (104, 4102705), (130, 3282164), (260, 1641082), (520, 820541)]