81230724

素因数分解:

$2^2\times 3^2\times {\mathrm{109}}^1\times {\mathrm{127}}^1\times {\mathrm{163}}^1$

素因数の和:409

約数の個数: 72

約数和(自身を含む): 210129920

約数和(自身を除く): 128899196

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 109, 127, 163, 218, 254, 326, 327, 381, 436, 489, 508, 652, 654, 762, 978, 981, 1143, 1308, 1467, 1524, 1956, 1962, 2286, 2934, 3924, 4572, 5868, 13843, 17767, 20701, 27686, 35534, 41402, 41529, 53301, 55372, 62103, 71068, 82804, 83058, 106602, 124206, 124587, 159903, 166116, 186309, 213204, 248412, 249174, 319806, 372618, 498348, 639612, 745236, 2256409, 4512818, 6769227, 9025636, 13538454, 20307681, 27076908, 40615362, 81230724]

約数ペア:

[(1, 81230724), (2, 40615362), (3, 27076908), (4, 20307681), (6, 13538454), (9, 9025636), (12, 6769227), (18, 4512818), (36, 2256409), (109, 745236), (127, 639612), (163, 498348), (218, 372618), (254, 319806), (326, 249174), (327, 248412), (381, 213204), (436, 186309), (489, 166116), (508, 159903), (652, 124587), (654, 124206), (762, 106602), (978, 83058), (981, 82804), (1143, 71068), (1308, 62103), (1467, 55372), (1524, 53301), (1956, 41529), (1962, 41402), (2286, 35534), (2934, 27686), (3924, 20701), (4572, 17767), (5868, 13843)]