81314420

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{33601}}^1$

素因数の和:33632

約数の個数: 36

約数和(自身を含む): 187700772

約数和(自身を除く): 106386352

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 121, 220, 242, 484, 605, 1210, 2420, 33601, 67202, 134404, 168005, 336010, 369611, 672020, 739222, 1478444, 1848055, 3696110, 4065721, 7392220, 8131442, 16262884, 20328605, 40657210, 81314420]

約数ペア:

[(1, 81314420), (2, 40657210), (4, 20328605), (5, 16262884), (10, 8131442), (11, 7392220), (20, 4065721), (22, 3696110), (44, 1848055), (55, 1478444), (110, 739222), (121, 672020), (220, 369611), (242, 336010), (484, 168005), (605, 134404), (1210, 67202), (2420, 33601)]