20350120

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{72679}}^1$

素因数の和:72697

約数の個数: 32

約数和(自身を含む): 52329600

約数和(自身を除く): 31979480

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 72679, 145358, 290716, 363395, 508753, 581432, 726790, 1017506, 1453580, 2035012, 2543765, 2907160, 4070024, 5087530, 10175060, 20350120]

約数ペア:

[(1, 20350120), (2, 10175060), (4, 5087530), (5, 4070024), (7, 2907160), (8, 2543765), (10, 2035012), (14, 1453580), (20, 1017506), (28, 726790), (35, 581432), (40, 508753), (56, 363395), (70, 290716), (140, 145358), (280, 72679)]