28487810

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{419}}^1\times {\mathrm{523}}^1$

素因数の和:962

約数の個数: 32

約数和(自身を含む): 55460160

約数和(自身を除く): 26972350

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 419, 523, 838, 1046, 2095, 2615, 4190, 5230, 5447, 6799, 10894, 13598, 27235, 33995, 54470, 67990, 219137, 438274, 1095685, 2191370, 2848781, 5697562, 14243905, 28487810]

約数ペア:

[(1, 28487810), (2, 14243905), (5, 5697562), (10, 2848781), (13, 2191370), (26, 1095685), (65, 438274), (130, 219137), (419, 67990), (523, 54470), (838, 33995), (1046, 27235), (2095, 13598), (2615, 10894), (4190, 6799), (5230, 5447)]