20286156956

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{221281}}^1$

素因数の和:221382

約数の個数: 48

約数和(自身を含む): 40075055328

約数和(自身を除く): 19788898372

約数列:

[1, 2, 4, 13, 26, 41, 43, 52, 82, 86, 164, 172, 533, 559, 1066, 1118, 1763, 2132, 2236, 3526, 7052, 22919, 45838, 91676, 221281, 442562, 885124, 2876653, 5753306, 9072521, 9515083, 11506612, 18145042, 19030166, 36290084, 38060332, 117942773, 123696079, 235885546, 247392158, 390118403, 471771092, 494784316, 780236806, 1560473612, 5071539239, 10143078478, 20286156956]

約数ペア:

[(1, 20286156956), (2, 10143078478), (4, 5071539239), (13, 1560473612), (26, 780236806), (41, 494784316), (43, 471771092), (52, 390118403), (82, 247392158), (86, 235885546), (164, 123696079), (172, 117942773), (533, 38060332), (559, 36290084), (1066, 19030166), (1118, 18145042), (1763, 11506612), (2132, 9515083), (2236, 9072521), (3526, 5753306), (7052, 2876653), (22919, 885124), (45838, 442562), (91676, 221281)]