83408920

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{297889}}^1$

素因数の和:297907

約数の個数: 32

約数和(自身を含む): 214480800

約数和(自身を除く): 131071880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 297889, 595778, 1191556, 1489445, 2085223, 2383112, 2978890, 4170446, 5957780, 8340892, 10426115, 11915560, 16681784, 20852230, 41704460, 83408920]

約数ペア:

[(1, 83408920), (2, 41704460), (4, 20852230), (5, 16681784), (7, 11915560), (8, 10426115), (10, 8340892), (14, 5957780), (20, 4170446), (28, 2978890), (35, 2383112), (40, 2085223), (56, 1489445), (70, 1191556), (140, 595778), (280, 297889)]