209311700405

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{31170767}}^1$

素因数の和:31170868

約数の個数: 16

約数和(自身を含む): 269315435520

約数和(自身を除く): 60003735115

約数列:

[1, 5, 17, 79, 85, 395, 1343, 6715, 31170767, 155853835, 529903039, 2462490593, 2649515195, 12312452965, 41862340081, 209311700405]

約数ペア:

[(1, 209311700405), (5, 41862340081), (17, 12312452965), (79, 2649515195), (85, 2462490593), (395, 529903039), (1343, 155853835), (6715, 31170767)]