20391510

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{173}}^1\times {\mathrm{3929}}^1$

素因数の和:4112

約数の個数: 32

約数和(自身を含む): 49235040

約数和(自身を除く): 28843530

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 173, 346, 519, 865, 1038, 1730, 2595, 3929, 5190, 7858, 11787, 19645, 23574, 39290, 58935, 117870, 679717, 1359434, 2039151, 3398585, 4078302, 6797170, 10195755, 20391510]

約数ペア:

[(1, 20391510), (2, 10195755), (3, 6797170), (5, 4078302), (6, 3398585), (10, 2039151), (15, 1359434), (30, 679717), (173, 117870), (346, 58935), (519, 39290), (865, 23574), (1038, 19645), (1730, 11787), (2595, 7858), (3929, 5190)]