20307278

素因数分解:

$2^1\times {\mathrm{71}}^1\times {\mathrm{83}}^1\times {\mathrm{1723}}^1$

素因数の和:1879

約数の個数: 16

約数和(自身を含む): 31280256

約数和(自身を除く): 10972978

約数列:

[1, 2, 71, 83, 142, 166, 1723, 3446, 5893, 11786, 122333, 143009, 244666, 286018, 10153639, 20307278]

約数ペア:

[(1, 20307278), (2, 10153639), (71, 286018), (83, 244666), (142, 143009), (166, 122333), (1723, 11786), (3446, 5893)]