20544888

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{409}}^1$

素因数の和:461

約数の個数: 128

約数和(自身を含む): 66124800

約数和(自身を除く): 45579912

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 13, 14, 21, 23, 24, 26, 28, 39, 42, 46, 52, 56, 69, 78, 84, 91, 92, 104, 138, 156, 161, 168, 182, 184, 273, 276, 299, 312, 322, 364, 409, 483, 546, 552, 598, 644, 728, 818, 897, 966, 1092, 1196, 1227, 1288, 1636, 1794, 1932, 2093, 2184, 2392, 2454, 2863, 3272, 3588, 3864, 4186, 4908, 5317, 5726, 6279, 7176, 8372, 8589, 9407, 9816, 10634, 11452, 12558, 15951, 16744, 17178, 18814, 21268, 22904, 25116, 28221, 31902, 34356, 37219, 37628, 42536, 50232, 56442, 63804, 65849, 68712, 74438, 75256, 111657, 112884, 122291, 127608, 131698, 148876, 197547, 223314, 225768, 244582, 263396, 297752, 366873, 395094, 446628, 489164, 526792, 733746, 790188, 856037, 893256, 978328, 1467492, 1580376, 1712074, 2568111, 2934984, 3424148, 5136222, 6848296, 10272444, 20544888]

約数ペア:

[(1, 20544888), (2, 10272444), (3, 6848296), (4, 5136222), (6, 3424148), (7, 2934984), (8, 2568111), (12, 1712074), (13, 1580376), (14, 1467492), (21, 978328), (23, 893256), (24, 856037), (26, 790188), (28, 733746), (39, 526792), (42, 489164), (46, 446628), (52, 395094), (56, 366873), (69, 297752), (78, 263396), (84, 244582), (91, 225768), (92, 223314), (104, 197547), (138, 148876), (156, 131698), (161, 127608), (168, 122291), (182, 112884), (184, 111657), (273, 75256), (276, 74438), (299, 68712), (312, 65849), (322, 63804), (364, 56442), (409, 50232), (483, 42536), (546, 37628), (552, 37219), (598, 34356), (644, 31902), (728, 28221), (818, 25116), (897, 22904), (966, 21268), (1092, 18814), (1196, 17178), (1227, 16744), (1288, 15951), (1636, 12558), (1794, 11452), (1932, 10634), (2093, 9816), (2184, 9407), (2392, 8589), (2454, 8372), (2863, 7176), (3272, 6279), (3588, 5726), (3864, 5317), (4186, 4908)]