31379590

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{79}}^1\times {\mathrm{157}}^1$

素因数の和:277

約数の個数: 64

約数和(自身を含む): 65525760

約数和(自身を除く): 34146170

約数列:

[1, 2, 5, 10, 11, 22, 23, 46, 55, 79, 110, 115, 157, 158, 230, 253, 314, 395, 506, 785, 790, 869, 1265, 1570, 1727, 1738, 1817, 2530, 3454, 3611, 3634, 4345, 7222, 8635, 8690, 9085, 12403, 17270, 18055, 18170, 19987, 24806, 36110, 39721, 39974, 62015, 79442, 99935, 124030, 136433, 198605, 199870, 272866, 285269, 397210, 570538, 682165, 1364330, 1426345, 2852690, 3137959, 6275918, 15689795, 31379590]

約数ペア:

[(1, 31379590), (2, 15689795), (5, 6275918), (10, 3137959), (11, 2852690), (22, 1426345), (23, 1364330), (46, 682165), (55, 570538), (79, 397210), (110, 285269), (115, 272866), (157, 199870), (158, 198605), (230, 136433), (253, 124030), (314, 99935), (395, 79442), (506, 62015), (785, 39974), (790, 39721), (869, 36110), (1265, 24806), (1570, 19987), (1727, 18170), (1738, 18055), (1817, 17270), (2530, 12403), (3454, 9085), (3611, 8690), (3634, 8635), (4345, 7222)]