20495365

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{79}}^1\times {\mathrm{89}}^1$

素因数の和:237

約数の個数: 32

約数和(自身を含む): 27993600

約数和(自身を除く): 7498235

約数列:

[1, 5, 11, 53, 55, 79, 89, 265, 395, 445, 583, 869, 979, 2915, 4187, 4345, 4717, 4895, 7031, 20935, 23585, 35155, 46057, 51887, 77341, 230285, 259435, 372643, 386705, 1863215, 4099073, 20495365]

約数ペア:

[(1, 20495365), (5, 4099073), (11, 1863215), (53, 386705), (55, 372643), (79, 259435), (89, 230285), (265, 77341), (395, 51887), (445, 46057), (583, 35155), (869, 23585), (979, 20935), (2915, 7031), (4187, 4895), (4345, 4717)]