289343216

素因数分解:

$2^4\times {\mathrm{43}}^1\times {\mathrm{420557}}^1$

素因数の和:420608

約数の個数: 20

約数和(自身を含む): 573641112

約数和(自身を除く): 284297896

約数列:

[1, 2, 4, 8, 16, 43, 86, 172, 344, 688, 420557, 841114, 1682228, 3364456, 6728912, 18083951, 36167902, 72335804, 144671608, 289343216]

約数ペア:

[(1, 289343216), (2, 144671608), (4, 72335804), (8, 36167902), (16, 18083951), (43, 6728912), (86, 3364456), (172, 1682228), (344, 841114), (688, 420557)]