638126020

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{797}}^1$

素因数の和:882

約数の個数: 144

約数和(自身を含む): 1681162560

約数和(自身を除く): 1043036540

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 28, 35, 38, 43, 49, 70, 76, 86, 95, 98, 133, 140, 172, 190, 196, 215, 245, 266, 301, 380, 430, 490, 532, 602, 665, 797, 817, 860, 931, 980, 1204, 1330, 1505, 1594, 1634, 1862, 2107, 2660, 3010, 3188, 3268, 3724, 3985, 4085, 4214, 4655, 5579, 5719, 6020, 7970, 8170, 8428, 9310, 10535, 11158, 11438, 15143, 15940, 16340, 18620, 21070, 22316, 22876, 27895, 28595, 30286, 34271, 39053, 40033, 42140, 55790, 57190, 60572, 68542, 75715, 78106, 80066, 106001, 111580, 114380, 137084, 151430, 156212, 160132, 171355, 195265, 200165, 212002, 239897, 302860, 342710, 390530, 400330, 424004, 479794, 530005, 651149, 685420, 742007, 781060, 800660, 959588, 1060010, 1199485, 1302298, 1484014, 1679279, 2120020, 2398970, 2604596, 2968028, 3255745, 3358558, 3710035, 4558043, 4797940, 6511490, 6717116, 7420070, 8396395, 9116086, 13022980, 14840140, 16792790, 18232172, 22790215, 31906301, 33585580, 45580430, 63812602, 91160860, 127625204, 159531505, 319063010, 638126020]

約数ペア:

[(1, 638126020), (2, 319063010), (4, 159531505), (5, 127625204), (7, 91160860), (10, 63812602), (14, 45580430), (19, 33585580), (20, 31906301), (28, 22790215), (35, 18232172), (38, 16792790), (43, 14840140), (49, 13022980), (70, 9116086), (76, 8396395), (86, 7420070), (95, 6717116), (98, 6511490), (133, 4797940), (140, 4558043), (172, 3710035), (190, 3358558), (196, 3255745), (215, 2968028), (245, 2604596), (266, 2398970), (301, 2120020), (380, 1679279), (430, 1484014), (490, 1302298), (532, 1199485), (602, 1060010), (665, 959588), (797, 800660), (817, 781060), (860, 742007), (931, 685420), (980, 651149), (1204, 530005), (1330, 479794), (1505, 424004), (1594, 400330), (1634, 390530), (1862, 342710), (2107, 302860), (2660, 239897), (3010, 212002), (3188, 200165), (3268, 195265), (3724, 171355), (3985, 160132), (4085, 156212), (4214, 151430), (4655, 137084), (5579, 114380), (5719, 111580), (6020, 106001), (7970, 80066), (8170, 78106), (8428, 75715), (9310, 68542), (10535, 60572), (11158, 57190), (11438, 55790), (15143, 42140), (15940, 40033), (16340, 39053), (18620, 34271), (21070, 30286), (22316, 28595), (22876, 27895)]