20805564

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{197}}^1\times {\mathrm{677}}^1$

素因数の和:894

約数の個数: 48

約数和(自身を含む): 52623648

約数和(自身を除く): 31818084

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156, 197, 394, 591, 677, 788, 1182, 1354, 2031, 2364, 2561, 2708, 4062, 5122, 7683, 8124, 8801, 10244, 15366, 17602, 26403, 30732, 35204, 52806, 105612, 133369, 266738, 400107, 533476, 800214, 1600428, 1733797, 3467594, 5201391, 6935188, 10402782, 20805564]

約数ペア:

[(1, 20805564), (2, 10402782), (3, 6935188), (4, 5201391), (6, 3467594), (12, 1733797), (13, 1600428), (26, 800214), (39, 533476), (52, 400107), (78, 266738), (156, 133369), (197, 105612), (394, 52806), (591, 35204), (677, 30732), (788, 26403), (1182, 17602), (1354, 15366), (2031, 10244), (2364, 8801), (2561, 8124), (2708, 7683), (4062, 5122)]