388589968

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{1889}}^1$

素因数の和:1976

約数の個数: 80

約数和(自身を含む): 866194560

約数和(自身を除く): 477604592

約数列:

[1, 2, 4, 8, 13, 16, 23, 26, 43, 46, 52, 86, 92, 104, 172, 184, 208, 299, 344, 368, 559, 598, 688, 989, 1118, 1196, 1889, 1978, 2236, 2392, 3778, 3956, 4472, 4784, 7556, 7912, 8944, 12857, 15112, 15824, 24557, 25714, 30224, 43447, 49114, 51428, 81227, 86894, 98228, 102856, 162454, 173788, 196456, 205712, 324908, 347576, 392912, 564811, 649816, 695152, 1055951, 1129622, 1299632, 1868221, 2111902, 2259244, 3736442, 4223804, 4518488, 7472884, 8447608, 9036976, 14945768, 16895216, 24286873, 29891536, 48573746, 97147492, 194294984, 388589968]

約数ペア:

[(1, 388589968), (2, 194294984), (4, 97147492), (8, 48573746), (13, 29891536), (16, 24286873), (23, 16895216), (26, 14945768), (43, 9036976), (46, 8447608), (52, 7472884), (86, 4518488), (92, 4223804), (104, 3736442), (172, 2259244), (184, 2111902), (208, 1868221), (299, 1299632), (344, 1129622), (368, 1055951), (559, 695152), (598, 649816), (688, 564811), (989, 392912), (1118, 347576), (1196, 324908), (1889, 205712), (1978, 196456), (2236, 173788), (2392, 162454), (3778, 102856), (3956, 98228), (4472, 86894), (4784, 81227), (7556, 51428), (7912, 49114), (8944, 43447), (12857, 30224), (15112, 25714), (15824, 24557)]