642928

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{281}}^1$

素因数の和:313

約数の個数: 40

約数和(自身を含む): 1468656

約数和(自身を除く): 825728

約数列:

[1, 2, 4, 8, 11, 13, 16, 22, 26, 44, 52, 88, 104, 143, 176, 208, 281, 286, 562, 572, 1124, 1144, 2248, 2288, 3091, 3653, 4496, 6182, 7306, 12364, 14612, 24728, 29224, 40183, 49456, 58448, 80366, 160732, 321464, 642928]

約数ペア:

[(1, 642928), (2, 321464), (4, 160732), (8, 80366), (11, 58448), (13, 49456), (16, 40183), (22, 29224), (26, 24728), (44, 14612), (52, 12364), (88, 7306), (104, 6182), (143, 4496), (176, 3653), (208, 3091), (281, 2288), (286, 2248), (562, 1144), (572, 1124)]