217968475

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{26993}}^1$

素因数の和:27039

約数の個数: 24

約数和(自身を含む): 301253040

約数和(自身を除く): 83284565

約数列:

[1, 5, 17, 19, 25, 85, 95, 323, 425, 475, 1615, 8075, 26993, 134965, 458881, 512867, 674825, 2294405, 2564335, 8718739, 11472025, 12821675, 43593695, 217968475]

約数ペア:

[(1, 217968475), (5, 43593695), (17, 12821675), (19, 11472025), (25, 8718739), (85, 2564335), (95, 2294405), (323, 674825), (425, 512867), (475, 458881), (1615, 134965), (8075, 26993)]