320008

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{181}}^1$

素因数の和:217

約数の個数: 32

約数和(自身を含む): 687960

約数和(自身を除く): 367952

約数列:

[1, 2, 4, 8, 13, 17, 26, 34, 52, 68, 104, 136, 181, 221, 362, 442, 724, 884, 1448, 1768, 2353, 3077, 4706, 6154, 9412, 12308, 18824, 24616, 40001, 80002, 160004, 320008]

約数ペア:

[(1, 320008), (2, 160004), (4, 80002), (8, 40001), (13, 24616), (17, 18824), (26, 12308), (34, 9412), (52, 6154), (68, 4706), (104, 3077), (136, 2353), (181, 1768), (221, 1448), (362, 884), (442, 724)]