20938120

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{74779}}^1$

素因数の和:74797

約数の個数: 32

約数和(自身を含む): 53841600

約数和(自身を除く): 32903480

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 74779, 149558, 299116, 373895, 523453, 598232, 747790, 1046906, 1495580, 2093812, 2617265, 2991160, 4187624, 5234530, 10469060, 20938120]

約数ペア:

[(1, 20938120), (2, 10469060), (4, 5234530), (5, 4187624), (7, 2991160), (8, 2617265), (10, 2093812), (14, 1495580), (20, 1046906), (28, 747790), (35, 598232), (40, 523453), (56, 373895), (70, 299116), (140, 149558), (280, 74779)]