1388960080

素因数分解:

$2^4\times 5^1\times {\mathrm{101}}^1\times {\mathrm{397}}^1\times {\mathrm{433}}^1$

素因数の和:944

約数の個数: 80

約数和(自身を含む): 3277071504

約数和(自身を除く): 1888111424

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 101, 202, 397, 404, 433, 505, 794, 808, 866, 1010, 1588, 1616, 1732, 1985, 2020, 2165, 3176, 3464, 3970, 4040, 4330, 6352, 6928, 7940, 8080, 8660, 15880, 17320, 31760, 34640, 40097, 43733, 80194, 87466, 160388, 171901, 174932, 200485, 218665, 320776, 343802, 349864, 400970, 437330, 641552, 687604, 699728, 801940, 859505, 874660, 1375208, 1603880, 1719010, 1749320, 2750416, 3207760, 3438020, 3498640, 6876040, 13752080, 17362001, 34724002, 69448004, 86810005, 138896008, 173620010, 277792016, 347240020, 694480040, 1388960080]

約数ペア:

[(1, 1388960080), (2, 694480040), (4, 347240020), (5, 277792016), (8, 173620010), (10, 138896008), (16, 86810005), (20, 69448004), (40, 34724002), (80, 17362001), (101, 13752080), (202, 6876040), (397, 3498640), (404, 3438020), (433, 3207760), (505, 2750416), (794, 1749320), (808, 1719010), (866, 1603880), (1010, 1375208), (1588, 874660), (1616, 859505), (1732, 801940), (1985, 699728), (2020, 687604), (2165, 641552), (3176, 437330), (3464, 400970), (3970, 349864), (4040, 343802), (4330, 320776), (6352, 218665), (6928, 200485), (7940, 174932), (8080, 171901), (8660, 160388), (15880, 87466), (17320, 80194), (31760, 43733), (34640, 40097)]