205657311

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{101}}^1\times {\mathrm{139}}^1\times {\mathrm{257}}^1$

素因数の和:519

約数の個数: 32

約数和(自身を含む): 294739200

約数和(自身を除く): 89081889

約数列:

[1, 3, 19, 57, 101, 139, 257, 303, 417, 771, 1919, 2641, 4883, 5757, 7923, 14039, 14649, 25957, 35723, 42117, 77871, 107169, 266741, 493183, 678737, 800223, 1479549, 2036211, 3608023, 10824069, 68552437, 205657311]

約数ペア:

[(1, 205657311), (3, 68552437), (19, 10824069), (57, 3608023), (101, 2036211), (139, 1479549), (257, 800223), (303, 678737), (417, 493183), (771, 266741), (1919, 107169), (2641, 77871), (4883, 42117), (5757, 35723), (7923, 25957), (14039, 14649)]