19955460

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{47513}}^1$

素因数の和:47532

約数の個数: 48

約数和(自身を含む): 63858816

約数和(自身を除く): 43903356

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 47513, 95026, 142539, 190052, 237565, 285078, 332591, 475130, 570156, 665182, 712695, 950260, 997773, 1330364, 1425390, 1662955, 1995546, 2850780, 3325910, 3991092, 4988865, 6651820, 9977730, 19955460]

約数ペア:

[(1, 19955460), (2, 9977730), (3, 6651820), (4, 4988865), (5, 3991092), (6, 3325910), (7, 2850780), (10, 1995546), (12, 1662955), (14, 1425390), (15, 1330364), (20, 997773), (21, 950260), (28, 712695), (30, 665182), (35, 570156), (42, 475130), (60, 332591), (70, 285078), (84, 237565), (105, 190052), (140, 142539), (210, 95026), (420, 47513)]