205941320

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{396041}}^1$

素因数の和:396065

約数の個数: 32

約数和(自身を含む): 499012920

約数和(自身を除く): 293071600

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 396041, 792082, 1584164, 1980205, 3168328, 3960410, 5148533, 7920820, 10297066, 15841640, 20594132, 25742665, 41188264, 51485330, 102970660, 205941320]

約数ペア:

[(1, 205941320), (2, 102970660), (4, 51485330), (5, 41188264), (8, 25742665), (10, 20594132), (13, 15841640), (20, 10297066), (26, 7920820), (40, 5148533), (52, 3960410), (65, 3168328), (104, 1980205), (130, 1584164), (260, 792082), (520, 396041)]