20158920

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{55997}}^1$

素因数の和:56014

約数の個数: 48

約数和(自身を含む): 65517660

約数和(自身を除く): 45358740

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 120, 180, 360, 55997, 111994, 167991, 223988, 279985, 335982, 447976, 503973, 559970, 671964, 839955, 1007946, 1119940, 1343928, 1679910, 2015892, 2239880, 2519865, 3359820, 4031784, 5039730, 6719640, 10079460, 20158920]

約数ペア:

[(1, 20158920), (2, 10079460), (3, 6719640), (4, 5039730), (5, 4031784), (6, 3359820), (8, 2519865), (9, 2239880), (10, 2015892), (12, 1679910), (15, 1343928), (18, 1119940), (20, 1007946), (24, 839955), (30, 671964), (36, 559970), (40, 503973), (45, 447976), (60, 335982), (72, 279985), (90, 223988), (120, 167991), (180, 111994), (360, 55997)]