28265745781

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{4733}}^1$

素因数の和:4886

約数の個数: 64

約数和(自身を含む): 37665976320

約数和(自身を除く): 9400230539

約数列:

[1, 7, 13, 29, 31, 73, 91, 203, 217, 377, 403, 511, 899, 949, 2117, 2263, 2639, 2821, 4733, 6293, 6643, 11687, 14819, 15841, 27521, 29419, 33131, 61529, 65627, 81809, 137257, 146723, 192647, 205933, 345509, 430703, 459389, 853151, 960799, 1027061, 1784341, 1907399, 2418563, 4254967, 4491617, 5972057, 10019761, 10710779, 12490387, 13351793, 29784769, 31441319, 55314571, 70138327, 74975453, 130256893, 139240127, 310612591, 387201997, 911798251, 974680889, 2174288137, 4037963683, 28265745781]

約数ペア:

[(1, 28265745781), (7, 4037963683), (13, 2174288137), (29, 974680889), (31, 911798251), (73, 387201997), (91, 310612591), (203, 139240127), (217, 130256893), (377, 74975453), (403, 70138327), (511, 55314571), (899, 31441319), (949, 29784769), (2117, 13351793), (2263, 12490387), (2639, 10710779), (2821, 10019761), (4733, 5972057), (6293, 4491617), (6643, 4254967), (11687, 2418563), (14819, 1907399), (15841, 1784341), (27521, 1027061), (29419, 960799), (33131, 853151), (61529, 459389), (65627, 430703), (81809, 345509), (137257, 205933), (146723, 192647)]