221321440

素因数分解:

$2^5\times 5^1\times {\mathrm{709}}^1\times {\mathrm{1951}}^1$

素因数の和:2675

約数の個数: 48

約数和(自身を含む): 523877760

約数和(自身を除く): 302556320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 709, 1418, 1951, 2836, 3545, 3902, 5672, 7090, 7804, 9755, 11344, 14180, 15608, 19510, 22688, 28360, 31216, 39020, 56720, 62432, 78040, 113440, 156080, 312160, 1383259, 2766518, 5533036, 6916295, 11066072, 13832590, 22132144, 27665180, 44264288, 55330360, 110660720, 221321440]

約数ペア:

[(1, 221321440), (2, 110660720), (4, 55330360), (5, 44264288), (8, 27665180), (10, 22132144), (16, 13832590), (20, 11066072), (32, 6916295), (40, 5533036), (80, 2766518), (160, 1383259), (709, 312160), (1418, 156080), (1951, 113440), (2836, 78040), (3545, 62432), (3902, 56720), (5672, 39020), (7090, 31216), (7804, 28360), (9755, 22688), (11344, 19510), (14180, 15608)]