20778787400

素因数分解:

$2^3\times 5^2\times 7^1\times {\mathrm{103}}^2\times {\mathrm{1399}}^1$

素因数の和:1628

約数の個数: 144

約数和(自身を含む): 55793304000

約数和(自身を除く): 35014516600

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 25, 28, 35, 40, 50, 56, 70, 100, 103, 140, 175, 200, 206, 280, 350, 412, 515, 700, 721, 824, 1030, 1399, 1400, 1442, 2060, 2575, 2798, 2884, 3605, 4120, 5150, 5596, 5768, 6995, 7210, 9793, 10300, 10609, 11192, 13990, 14420, 18025, 19586, 20600, 21218, 27980, 28840, 34975, 36050, 39172, 42436, 48965, 53045, 55960, 69950, 72100, 74263, 78344, 84872, 97930, 106090, 139900, 144097, 144200, 148526, 195860, 212180, 244825, 265225, 279800, 288194, 297052, 371315, 391720, 424360, 489650, 530450, 576388, 594104, 720485, 742630, 979300, 1008679, 1060900, 1152776, 1440970, 1485260, 1856575, 1958600, 2017358, 2121800, 2881940, 2970520, 3602425, 3713150, 4034716, 5043395, 5763880, 7204850, 7426300, 8069432, 10086790, 14409700, 14841991, 14852600, 20173580, 25216975, 28819400, 29683982, 40347160, 50433950, 59367964, 74209955, 100867900, 103893937, 118735928, 148419910, 201735800, 207787874, 296839820, 371049775, 415575748, 519469685, 593679640, 742099550, 831151496, 1038939370, 1484199100, 2077878740, 2597348425, 2968398200, 4155757480, 5194696850, 10389393700, 20778787400]

約数ペア:

[(1, 20778787400), (2, 10389393700), (4, 5194696850), (5, 4155757480), (7, 2968398200), (8, 2597348425), (10, 2077878740), (14, 1484199100), (20, 1038939370), (25, 831151496), (28, 742099550), (35, 593679640), (40, 519469685), (50, 415575748), (56, 371049775), (70, 296839820), (100, 207787874), (103, 201735800), (140, 148419910), (175, 118735928), (200, 103893937), (206, 100867900), (280, 74209955), (350, 59367964), (412, 50433950), (515, 40347160), (700, 29683982), (721, 28819400), (824, 25216975), (1030, 20173580), (1399, 14852600), (1400, 14841991), (1442, 14409700), (2060, 10086790), (2575, 8069432), (2798, 7426300), (2884, 7204850), (3605, 5763880), (4120, 5043395), (5150, 4034716), (5596, 3713150), (5768, 3602425), (6995, 2970520), (7210, 2881940), (9793, 2121800), (10300, 2017358), (10609, 1958600), (11192, 1856575), (13990, 1485260), (14420, 1440970), (18025, 1152776), (19586, 1060900), (20600, 1008679), (21218, 979300), (27980, 742630), (28840, 720485), (34975, 594104), (36050, 576388), (39172, 530450), (42436, 489650), (48965, 424360), (53045, 391720), (55960, 371315), (69950, 297052), (72100, 288194), (74263, 279800), (78344, 265225), (84872, 244825), (97930, 212180), (106090, 195860), (139900, 148526), (144097, 144200)]