20578530

素因数分解:

$2^1\times 3^1\times 5^1\times 7^2\times {\mathrm{13999}}^1$

素因数の和:14023

約数の個数: 48

約数和(自身を含む): 57456000

約数和(自身を除く): 36877470

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 49, 70, 98, 105, 147, 210, 245, 294, 490, 735, 1470, 13999, 27998, 41997, 69995, 83994, 97993, 139990, 195986, 209985, 293979, 419970, 489965, 587958, 685951, 979930, 1371902, 1469895, 2057853, 2939790, 3429755, 4115706, 6859510, 10289265, 20578530]

約数ペア:

[(1, 20578530), (2, 10289265), (3, 6859510), (5, 4115706), (6, 3429755), (7, 2939790), (10, 2057853), (14, 1469895), (15, 1371902), (21, 979930), (30, 685951), (35, 587958), (42, 489965), (49, 419970), (70, 293979), (98, 209985), (105, 195986), (147, 139990), (210, 97993), (245, 83994), (294, 69995), (490, 41997), (735, 27998), (1470, 13999)]