20688330

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{53047}}^1$

素因数の和:53070

約数の個数: 32

約数和(自身を含む): 53472384

約数和(自身を除く): 32784054

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 53047, 106094, 159141, 265235, 318282, 530470, 689611, 795705, 1379222, 1591410, 2068833, 3448055, 4137666, 6896110, 10344165, 20688330]

約数ペア:

[(1, 20688330), (2, 10344165), (3, 6896110), (5, 4137666), (6, 3448055), (10, 2068833), (13, 1591410), (15, 1379222), (26, 795705), (30, 689611), (39, 530470), (65, 318282), (78, 265235), (130, 159141), (195, 106094), (390, 53047)]