20512560

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{85469}}^1$

素因数の和:85485

約数の個数: 40

約数和(自身を含む): 63589680

約数和(自身を除く): 43077120

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 85469, 170938, 256407, 341876, 427345, 512814, 683752, 854690, 1025628, 1282035, 1367504, 1709380, 2051256, 2564070, 3418760, 4102512, 5128140, 6837520, 10256280, 20512560]

約数ペア:

[(1, 20512560), (2, 10256280), (3, 6837520), (4, 5128140), (5, 4102512), (6, 3418760), (8, 2564070), (10, 2051256), (12, 1709380), (15, 1367504), (16, 1282035), (20, 1025628), (24, 854690), (30, 683752), (40, 512814), (48, 427345), (60, 341876), (80, 256407), (120, 170938), (240, 85469)]