19889880

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{165749}}^1$

素因数の和:165763

約数の個数: 32

約数和(自身を含む): 59670000

約数和(自身を除く): 39780120

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 165749, 331498, 497247, 662996, 828745, 994494, 1325992, 1657490, 1988988, 2486235, 3314980, 3977976, 4972470, 6629960, 9944940, 19889880]

約数ペア:

[(1, 19889880), (2, 9944940), (3, 6629960), (4, 4972470), (5, 3977976), (6, 3314980), (8, 2486235), (10, 1988988), (12, 1657490), (15, 1325992), (20, 994494), (24, 828745), (30, 662996), (40, 497247), (60, 331498), (120, 165749)]