686421385

素因数分解:

$5^1\times {\mathrm{13}}^2\times {\mathrm{41}}^1\times {\mathrm{19813}}^1$

素因数の和:19885

約数の個数: 24

約数和(自身を含む): 913742424

約数和(自身を除く): 227321039

約数列:

[1, 5, 13, 41, 65, 169, 205, 533, 845, 2665, 6929, 19813, 34645, 99065, 257569, 812333, 1287845, 3348397, 4061665, 10560329, 16741985, 52801645, 137284277, 686421385]

約数ペア:

[(1, 686421385), (5, 137284277), (13, 52801645), (41, 16741985), (65, 10560329), (169, 4061665), (205, 3348397), (533, 1287845), (845, 812333), (2665, 257569), (6929, 99065), (19813, 34645)]