20764520

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{74159}}^1$

素因数の和:74177

約数の個数: 32

約数和(自身を含む): 53395200

約数和(自身を除く): 32630680

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 74159, 148318, 296636, 370795, 519113, 593272, 741590, 1038226, 1483180, 2076452, 2595565, 2966360, 4152904, 5191130, 10382260, 20764520]

約数ペア:

[(1, 20764520), (2, 10382260), (4, 5191130), (5, 4152904), (7, 2966360), (8, 2595565), (10, 2076452), (14, 1483180), (20, 1038226), (28, 741590), (35, 593272), (40, 519113), (56, 370795), (70, 296636), (140, 148318), (280, 74159)]