20709140

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{22031}}^1$

素因数の和:22087

約数の個数: 24

約数和(自身を含む): 44416512

約数和(自身を除く): 23707372

約数列:

[1, 2, 4, 5, 10, 20, 47, 94, 188, 235, 470, 940, 22031, 44062, 88124, 110155, 220310, 440620, 1035457, 2070914, 4141828, 5177285, 10354570, 20709140]

約数ペア:

[(1, 20709140), (2, 10354570), (4, 5177285), (5, 4141828), (10, 2070914), (20, 1035457), (47, 440620), (94, 220310), (188, 110155), (235, 88124), (470, 44062), (940, 22031)]