20147778

素因数分解:

$2^1\times 3^4\times 7^1\times {\mathrm{109}}^1\times {\mathrm{163}}^1$

素因数の和:293

約数の個数: 80

約数和(自身を含む): 52388160

約数和(自身を除く): 32240382

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 54, 63, 81, 109, 126, 162, 163, 189, 218, 326, 327, 378, 489, 567, 654, 763, 978, 981, 1134, 1141, 1467, 1526, 1962, 2282, 2289, 2934, 2943, 3423, 4401, 4578, 5886, 6846, 6867, 8802, 8829, 10269, 13203, 13734, 17658, 17767, 20538, 20601, 26406, 30807, 35534, 41202, 53301, 61614, 61803, 92421, 106602, 123606, 124369, 159903, 184842, 248738, 319806, 373107, 479709, 746214, 959418, 1119321, 1439127, 2238642, 2878254, 3357963, 6715926, 10073889, 20147778]

約数ペア:

[(1, 20147778), (2, 10073889), (3, 6715926), (6, 3357963), (7, 2878254), (9, 2238642), (14, 1439127), (18, 1119321), (21, 959418), (27, 746214), (42, 479709), (54, 373107), (63, 319806), (81, 248738), (109, 184842), (126, 159903), (162, 124369), (163, 123606), (189, 106602), (218, 92421), (326, 61803), (327, 61614), (378, 53301), (489, 41202), (567, 35534), (654, 30807), (763, 26406), (978, 20601), (981, 20538), (1134, 17767), (1141, 17658), (1467, 13734), (1526, 13203), (1962, 10269), (2282, 8829), (2289, 8802), (2934, 6867), (2943, 6846), (3423, 5886), (4401, 4578)]