1640804048

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{449}}^1\times {\mathrm{17569}}^1$

素因数の和:18039

約数の個数: 40

約数和(自身を含む): 3431421000

約数和(自身を除く): 1790616952

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 449, 898, 1796, 3592, 5837, 7184, 11674, 17569, 23348, 35138, 46696, 70276, 93392, 140552, 228397, 281104, 456794, 913588, 1827176, 3654352, 7888481, 15776962, 31553924, 63107848, 102550253, 126215696, 205100506, 410201012, 820402024, 1640804048]

約数ペア:

[(1, 1640804048), (2, 820402024), (4, 410201012), (8, 205100506), (13, 126215696), (16, 102550253), (26, 63107848), (52, 31553924), (104, 15776962), (208, 7888481), (449, 3654352), (898, 1827176), (1796, 913588), (3592, 456794), (5837, 281104), (7184, 228397), (11674, 140552), (17569, 93392), (23348, 70276), (35138, 46696)]