217096885

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{293}}^1\times {\mathrm{379}}^1$

素因数の和:717

約数の個数: 32

約数和(自身を含む): 289578240

約数和(自身を除く): 72481355

約数列:

[1, 5, 17, 23, 85, 115, 293, 379, 391, 1465, 1895, 1955, 4981, 6443, 6739, 8717, 24905, 32215, 33695, 43585, 111047, 114563, 148189, 555235, 572815, 740945, 1887799, 2554081, 9438995, 12770405, 43419377, 217096885]

約数ペア:

[(1, 217096885), (5, 43419377), (17, 12770405), (23, 9438995), (85, 2554081), (115, 1887799), (293, 740945), (379, 572815), (391, 555235), (1465, 148189), (1895, 114563), (1955, 111047), (4981, 43585), (6443, 33695), (6739, 32215), (8717, 24905)]