20600008

素因数分解:

$2^3\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{1637}}^1$

素因数の和:1678

約数の個数: 48

約数和(自身を含む): 45749340

約数和(自身を除く): 25149332

約数列:

[1, 2, 4, 8, 11, 13, 22, 26, 44, 52, 88, 104, 121, 143, 242, 286, 484, 572, 968, 1144, 1573, 1637, 3146, 3274, 6292, 6548, 12584, 13096, 18007, 21281, 36014, 42562, 72028, 85124, 144056, 170248, 198077, 234091, 396154, 468182, 792308, 936364, 1584616, 1872728, 2575001, 5150002, 10300004, 20600008]

約数ペア:

[(1, 20600008), (2, 10300004), (4, 5150002), (8, 2575001), (11, 1872728), (13, 1584616), (22, 936364), (26, 792308), (44, 468182), (52, 396154), (88, 234091), (104, 198077), (121, 170248), (143, 144056), (242, 85124), (286, 72028), (484, 42562), (572, 36014), (968, 21281), (1144, 18007), (1573, 13096), (1637, 12584), (3146, 6548), (3274, 6292)]