20944540

素因数分解:

$2^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{19759}}^1$

素因数の和:19821

約数の個数: 24

約数和(自身を含む): 44815680

約数和(自身を除く): 23871140

約数列:

[1, 2, 4, 5, 10, 20, 53, 106, 212, 265, 530, 1060, 19759, 39518, 79036, 98795, 197590, 395180, 1047227, 2094454, 4188908, 5236135, 10472270, 20944540]

約数ペア:

[(1, 20944540), (2, 10472270), (4, 5236135), (5, 4188908), (10, 2094454), (20, 1047227), (53, 395180), (106, 197590), (212, 98795), (265, 79036), (530, 39518), (1060, 19759)]