639612

素因数分解:

$2^2\times 3^2\times {\mathrm{109}}^1\times {\mathrm{163}}^1$

素因数の和:282

約数の個数: 36

約数和(自身を含む): 1641640

約数和(自身を除く): 1002028

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 109, 163, 218, 326, 327, 436, 489, 652, 654, 978, 981, 1308, 1467, 1956, 1962, 2934, 3924, 5868, 17767, 35534, 53301, 71068, 106602, 159903, 213204, 319806, 639612]

約数ペア:

[(1, 639612), (2, 319806), (3, 213204), (4, 159903), (6, 106602), (9, 71068), (12, 53301), (18, 35534), (36, 17767), (109, 5868), (163, 3924), (218, 2934), (326, 1962), (327, 1956), (436, 1467), (489, 1308), (652, 981), (654, 978)]