64350325

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{389}}^1\times {\mathrm{509}}^1$

素因数の和:921

約数の個数: 24

約数和(自身を含む): 86322600

約数和(自身を除く): 21972275

約数列:

[1, 5, 13, 25, 65, 325, 389, 509, 1945, 2545, 5057, 6617, 9725, 12725, 25285, 33085, 126425, 165425, 198001, 990005, 2574013, 4950025, 12870065, 64350325]

約数ペア:

[(1, 64350325), (5, 12870065), (13, 4950025), (25, 2574013), (65, 990005), (325, 198001), (389, 165425), (509, 126425), (1945, 33085), (2545, 25285), (5057, 12725), (6617, 9725)]