20923340

素因数分解:

$2^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{19739}}^1$

素因数の和:19801

約数の個数: 24

約数和(自身を含む): 44770320

約数和(自身を除く): 23846980

約数列:

[1, 2, 4, 5, 10, 20, 53, 106, 212, 265, 530, 1060, 19739, 39478, 78956, 98695, 197390, 394780, 1046167, 2092334, 4184668, 5230835, 10461670, 20923340]

約数ペア:

[(1, 20923340), (2, 10461670), (4, 5230835), (5, 4184668), (10, 2092334), (20, 1046167), (53, 394780), (106, 197390), (212, 98695), (265, 78956), (530, 39478), (1060, 19739)]