251219970

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{127}}^1\times {\mathrm{709}}^1$

素因数の和:880

約数の個数: 96

約数和(自身を含む): 680509440

約数和(自身を除く): 429289470

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 31, 45, 62, 90, 93, 127, 155, 186, 254, 279, 310, 381, 465, 558, 635, 709, 762, 930, 1143, 1270, 1395, 1418, 1905, 2127, 2286, 2790, 3545, 3810, 3937, 4254, 5715, 6381, 7090, 7874, 10635, 11430, 11811, 12762, 19685, 21270, 21979, 23622, 31905, 35433, 39370, 43958, 59055, 63810, 65937, 70866, 90043, 109895, 118110, 131874, 177165, 180086, 197811, 219790, 270129, 329685, 354330, 395622, 450215, 540258, 659370, 810387, 900430, 989055, 1350645, 1620774, 1978110, 2701290, 2791333, 4051935, 5582666, 8103870, 8373999, 13956665, 16747998, 25121997, 27913330, 41869995, 50243994, 83739990, 125609985, 251219970]

約数ペア:

[(1, 251219970), (2, 125609985), (3, 83739990), (5, 50243994), (6, 41869995), (9, 27913330), (10, 25121997), (15, 16747998), (18, 13956665), (30, 8373999), (31, 8103870), (45, 5582666), (62, 4051935), (90, 2791333), (93, 2701290), (127, 1978110), (155, 1620774), (186, 1350645), (254, 989055), (279, 900430), (310, 810387), (381, 659370), (465, 540258), (558, 450215), (635, 395622), (709, 354330), (762, 329685), (930, 270129), (1143, 219790), (1270, 197811), (1395, 180086), (1418, 177165), (1905, 131874), (2127, 118110), (2286, 109895), (2790, 90043), (3545, 70866), (3810, 65937), (3937, 63810), (4254, 59055), (5715, 43958), (6381, 39370), (7090, 35433), (7874, 31905), (10635, 23622), (11430, 21979), (11811, 21270), (12762, 19685)]