19439880

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{161999}}^1$

素因数の和:162013

約数の個数: 32

約数和(自身を含む): 58320000

約数和(自身を除く): 38880120

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 161999, 323998, 485997, 647996, 809995, 971994, 1295992, 1619990, 1943988, 2429985, 3239980, 3887976, 4859970, 6479960, 9719940, 19439880]

約数ペア:

[(1, 19439880), (2, 9719940), (3, 6479960), (4, 4859970), (5, 3887976), (6, 3239980), (8, 2429985), (10, 1943988), (12, 1619990), (15, 1295992), (20, 971994), (24, 809995), (30, 647996), (40, 485997), (60, 323998), (120, 161999)]