28909735

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{101}}^1\times {\mathrm{131}}^1$

素因数の和:279

約数の個数: 32

約数和(自身を含む): 38776320

約数和(自身を除く): 9866585

約数列:

[1, 5, 19, 23, 95, 101, 115, 131, 437, 505, 655, 1919, 2185, 2323, 2489, 3013, 9595, 11615, 12445, 13231, 15065, 44137, 57247, 66155, 220685, 251389, 286235, 304313, 1256945, 1521565, 5781947, 28909735]

約数ペア:

[(1, 28909735), (5, 5781947), (19, 1521565), (23, 1256945), (95, 304313), (101, 286235), (115, 251389), (131, 220685), (437, 66155), (505, 57247), (655, 44137), (1919, 15065), (2185, 13231), (2323, 12445), (2489, 11615), (3013, 9595)]