20165880

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{24007}}^1$

素因数の和:24028

約数の個数: 64

約数和(自身を含む): 69143040

約数和(自身を除く): 48977160

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840, 24007, 48014, 72021, 96028, 120035, 144042, 168049, 192056, 240070, 288084, 336098, 360105, 480140, 504147, 576168, 672196, 720210, 840245, 960280, 1008294, 1344392, 1440420, 1680490, 2016588, 2520735, 2880840, 3360980, 4033176, 5041470, 6721960, 10082940, 20165880]

約数ペア:

[(1, 20165880), (2, 10082940), (3, 6721960), (4, 5041470), (5, 4033176), (6, 3360980), (7, 2880840), (8, 2520735), (10, 2016588), (12, 1680490), (14, 1440420), (15, 1344392), (20, 1008294), (21, 960280), (24, 840245), (28, 720210), (30, 672196), (35, 576168), (40, 504147), (42, 480140), (56, 360105), (60, 336098), (70, 288084), (84, 240070), (105, 192056), (120, 168049), (140, 144042), (168, 120035), (210, 96028), (280, 72021), (420, 48014), (840, 24007)]