2019909040

素因数分解:

$2^4\times 5^1\times {\mathrm{163}}^1\times {\mathrm{191}}^1\times {\mathrm{811}}^1$

素因数の和:1178

約数の個数: 80

約数和(自身を含む): 4755695616

約数和(自身を除く): 2735786576

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 163, 191, 326, 382, 652, 764, 811, 815, 955, 1304, 1528, 1622, 1630, 1910, 2608, 3056, 3244, 3260, 3820, 4055, 6488, 6520, 7640, 8110, 12976, 13040, 15280, 16220, 31133, 32440, 62266, 64880, 124532, 132193, 154901, 155665, 249064, 264386, 309802, 311330, 498128, 528772, 619604, 622660, 660965, 774505, 1057544, 1239208, 1245320, 1321930, 1549010, 2115088, 2478416, 2490640, 2643860, 3098020, 5287720, 6196040, 10575440, 12392080, 25248863, 50497726, 100995452, 126244315, 201990904, 252488630, 403981808, 504977260, 1009954520, 2019909040]

約数ペア:

[(1, 2019909040), (2, 1009954520), (4, 504977260), (5, 403981808), (8, 252488630), (10, 201990904), (16, 126244315), (20, 100995452), (40, 50497726), (80, 25248863), (163, 12392080), (191, 10575440), (326, 6196040), (382, 5287720), (652, 3098020), (764, 2643860), (811, 2490640), (815, 2478416), (955, 2115088), (1304, 1549010), (1528, 1321930), (1622, 1245320), (1630, 1239208), (1910, 1057544), (2608, 774505), (3056, 660965), (3244, 622660), (3260, 619604), (3820, 528772), (4055, 498128), (6488, 311330), (6520, 309802), (7640, 264386), (8110, 249064), (12976, 155665), (13040, 154901), (15280, 132193), (16220, 124532), (31133, 64880), (32440, 62266)]