278325927

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{1873}}^1$

素因数の和:1988

約数の個数: 48

約数和(自身を含む): 467750400

約数和(自身を除く): 189424473

約数列:

[1, 3, 9, 11, 19, 33, 57, 79, 99, 171, 209, 237, 627, 711, 869, 1501, 1873, 1881, 2607, 4503, 5619, 7821, 13509, 16511, 16857, 20603, 35587, 49533, 61809, 106761, 147967, 148599, 185427, 320283, 391457, 443901, 1174371, 1331703, 1627637, 2811373, 3523113, 4882911, 8434119, 14648733, 25302357, 30925103, 92775309, 278325927]

約数ペア:

[(1, 278325927), (3, 92775309), (9, 30925103), (11, 25302357), (19, 14648733), (33, 8434119), (57, 4882911), (79, 3523113), (99, 2811373), (171, 1627637), (209, 1331703), (237, 1174371), (627, 443901), (711, 391457), (869, 320283), (1501, 185427), (1873, 148599), (1881, 147967), (2607, 106761), (4503, 61809), (5619, 49533), (7821, 35587), (13509, 20603), (16511, 16857)]