278360901

素因数分解:

$3^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{277}}^1\times {\mathrm{409}}^1$

素因数の和:715

約数の個数: 64

約数和(自身を含む): 510630400

約数和(自身を除く): 232269499

約数列:

[1, 3, 7, 9, 13, 21, 27, 39, 63, 91, 117, 189, 273, 277, 351, 409, 819, 831, 1227, 1939, 2457, 2493, 2863, 3601, 3681, 5317, 5817, 7479, 8589, 10803, 11043, 15951, 17451, 25207, 25767, 32409, 37219, 47853, 52353, 75621, 77301, 97227, 111657, 113293, 143559, 226863, 334971, 339879, 680589, 793051, 1004913, 1019637, 1472809, 2379153, 3058911, 4418427, 7137459, 10309663, 13255281, 21412377, 30928989, 39765843, 92786967, 278360901]

約数ペア:

[(1, 278360901), (3, 92786967), (7, 39765843), (9, 30928989), (13, 21412377), (21, 13255281), (27, 10309663), (39, 7137459), (63, 4418427), (91, 3058911), (117, 2379153), (189, 1472809), (273, 1019637), (277, 1004913), (351, 793051), (409, 680589), (819, 339879), (831, 334971), (1227, 226863), (1939, 143559), (2457, 113293), (2493, 111657), (2863, 97227), (3601, 77301), (3681, 75621), (5317, 52353), (5817, 47853), (7479, 37219), (8589, 32409), (10803, 25767), (11043, 25207), (15951, 17451)]