257911387920

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{389}}^1\times {\mathrm{920849}}^1$

素因数の和:921257

約数の個数: 120

約数和(自身を含む): 868379967000

約数和(自身を除く): 610468579080

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 180, 240, 360, 389, 720, 778, 1167, 1556, 1945, 2334, 3112, 3501, 3890, 4668, 5835, 6224, 7002, 7780, 9336, 11670, 14004, 15560, 17505, 18672, 23340, 28008, 31120, 35010, 46680, 56016, 70020, 93360, 140040, 280080, 920849, 1841698, 2762547, 3683396, 4604245, 5525094, 7366792, 8287641, 9208490, 11050188, 13812735, 14733584, 16575282, 18416980, 22100376, 27625470, 33150564, 36833960, 41438205, 44200752, 55250940, 66301128, 73667920, 82876410, 110501880, 132602256, 165752820, 221003760, 331505640, 358210261, 663011280, 716420522, 1074630783, 1432841044, 1791051305, 2149261566, 2865682088, 3223892349, 3582102610, 4298523132, 5373153915, 5731364176, 6447784698, 7164205220, 8597046264, 10746307830, 12895569396, 14328410440, 16119461745, 17194092528, 21492615660, 25791138792, 28656820880, 32238923490, 42985231320, 51582277584, 64477846980, 85970462640, 128955693960, 257911387920]

約数ペア:

[(1, 257911387920), (2, 128955693960), (3, 85970462640), (4, 64477846980), (5, 51582277584), (6, 42985231320), (8, 32238923490), (9, 28656820880), (10, 25791138792), (12, 21492615660), (15, 17194092528), (16, 16119461745), (18, 14328410440), (20, 12895569396), (24, 10746307830), (30, 8597046264), (36, 7164205220), (40, 6447784698), (45, 5731364176), (48, 5373153915), (60, 4298523132), (72, 3582102610), (80, 3223892349), (90, 2865682088), (120, 2149261566), (144, 1791051305), (180, 1432841044), (240, 1074630783), (360, 716420522), (389, 663011280), (720, 358210261), (778, 331505640), (1167, 221003760), (1556, 165752820), (1945, 132602256), (2334, 110501880), (3112, 82876410), (3501, 73667920), (3890, 66301128), (4668, 55250940), (5835, 44200752), (6224, 41438205), (7002, 36833960), (7780, 33150564), (9336, 27625470), (11670, 22100376), (14004, 18416980), (15560, 16575282), (17505, 14733584), (18672, 13812735), (23340, 11050188), (28008, 9208490), (31120, 8287641), (35010, 7366792), (46680, 5525094), (56016, 4604245), (70020, 3683396), (93360, 2762547), (140040, 1841698), (280080, 920849)]