20569710

素因数分解:

$2^1\times 3^1\times 5^1\times 7^3\times {\mathrm{1999}}^1$

素因数の和:2030

約数の個数: 64

約数和(自身を含む): 57600000

約数和(自身を除く): 37030290

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 49, 70, 98, 105, 147, 210, 245, 294, 343, 490, 686, 735, 1029, 1470, 1715, 1999, 2058, 3430, 3998, 5145, 5997, 9995, 10290, 11994, 13993, 19990, 27986, 29985, 41979, 59970, 69965, 83958, 97951, 139930, 195902, 209895, 293853, 419790, 489755, 587706, 685657, 979510, 1371314, 1469265, 2056971, 2938530, 3428285, 4113942, 6856570, 10284855, 20569710]

約数ペア:

[(1, 20569710), (2, 10284855), (3, 6856570), (5, 4113942), (6, 3428285), (7, 2938530), (10, 2056971), (14, 1469265), (15, 1371314), (21, 979510), (30, 685657), (35, 587706), (42, 489755), (49, 419790), (70, 293853), (98, 209895), (105, 195902), (147, 139930), (210, 97951), (245, 83958), (294, 69965), (343, 59970), (490, 41979), (686, 29985), (735, 27986), (1029, 19990), (1470, 13993), (1715, 11994), (1999, 10290), (2058, 9995), (3430, 5997), (3998, 5145)]