51420590

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{395543}}^1$

素因数の和:395563

約数の個数: 16

約数和(自身を含む): 99677088

約数和(自身を除く): 48256498

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 395543, 791086, 1977715, 3955430, 5142059, 10284118, 25710295, 51420590]

約数ペア:

[(1, 51420590), (2, 25710295), (5, 10284118), (10, 5142059), (13, 3955430), (26, 1977715), (65, 791086), (130, 395543)]