638695260

素因数分解:

$2^2\times 3^3\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{8893}}^1$

素因数の和:8937

約数の個数: 192

約数和(自身を含む): 2390707200

約数和(自身を除く): 1752011940

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 19, 20, 21, 27, 28, 30, 35, 36, 38, 42, 45, 54, 57, 60, 63, 70, 76, 84, 90, 95, 105, 108, 114, 126, 133, 135, 140, 171, 180, 189, 190, 210, 228, 252, 266, 270, 285, 315, 342, 378, 380, 399, 420, 513, 532, 540, 570, 630, 665, 684, 756, 798, 855, 945, 1026, 1140, 1197, 1260, 1330, 1596, 1710, 1890, 1995, 2052, 2394, 2565, 2660, 3420, 3591, 3780, 3990, 4788, 5130, 5985, 7182, 7980, 8893, 10260, 11970, 14364, 17786, 17955, 23940, 26679, 35572, 35910, 44465, 53358, 62251, 71820, 80037, 88930, 106716, 124502, 133395, 160074, 168967, 177860, 186753, 240111, 249004, 266790, 311255, 320148, 337934, 373506, 400185, 480222, 506901, 533580, 560259, 622510, 675868, 747012, 800370, 844835, 933765, 960444, 1013802, 1120518, 1182769, 1200555, 1245020, 1520703, 1600740, 1680777, 1689670, 1867530, 2027604, 2241036, 2365538, 2401110, 2534505, 2801295, 3041406, 3361554, 3379340, 3548307, 3735060, 4562109, 4731076, 4802220, 5069010, 5602590, 5913845, 6082812, 6723108, 7096614, 7603515, 8403885, 9124218, 10138020, 10644921, 11205180, 11827690, 14193228, 15207030, 16807770, 17741535, 18248436, 21289842, 22810545, 23655380, 30414060, 31934763, 33615540, 35483070, 42579684, 45621090, 53224605, 63869526, 70966140, 91242180, 106449210, 127739052, 159673815, 212898420, 319347630, 638695260]

約数ペア:

[(1, 638695260), (2, 319347630), (3, 212898420), (4, 159673815), (5, 127739052), (6, 106449210), (7, 91242180), (9, 70966140), (10, 63869526), (12, 53224605), (14, 45621090), (15, 42579684), (18, 35483070), (19, 33615540), (20, 31934763), (21, 30414060), (27, 23655380), (28, 22810545), (30, 21289842), (35, 18248436), (36, 17741535), (38, 16807770), (42, 15207030), (45, 14193228), (54, 11827690), (57, 11205180), (60, 10644921), (63, 10138020), (70, 9124218), (76, 8403885), (84, 7603515), (90, 7096614), (95, 6723108), (105, 6082812), (108, 5913845), (114, 5602590), (126, 5069010), (133, 4802220), (135, 4731076), (140, 4562109), (171, 3735060), (180, 3548307), (189, 3379340), (190, 3361554), (210, 3041406), (228, 2801295), (252, 2534505), (266, 2401110), (270, 2365538), (285, 2241036), (315, 2027604), (342, 1867530), (378, 1689670), (380, 1680777), (399, 1600740), (420, 1520703), (513, 1245020), (532, 1200555), (540, 1182769), (570, 1120518), (630, 1013802), (665, 960444), (684, 933765), (756, 844835), (798, 800370), (855, 747012), (945, 675868), (1026, 622510), (1140, 560259), (1197, 533580), (1260, 506901), (1330, 480222), (1596, 400185), (1710, 373506), (1890, 337934), (1995, 320148), (2052, 311255), (2394, 266790), (2565, 249004), (2660, 240111), (3420, 186753), (3591, 177860), (3780, 168967), (3990, 160074), (4788, 133395), (5130, 124502), (5985, 106716), (7182, 88930), (7980, 80037), (8893, 71820), (10260, 62251), (11970, 53358), (14364, 44465), (17786, 35910), (17955, 35572), (23940, 26679)]