311188137

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^2\times {\mathrm{23}}^1\times {\mathrm{31}}^2$

素因数の和:139

約数の個数: 72

約数和(自身を含む): 508479552

約数和(自身を除く): 197291415

約数列:

[1, 3, 13, 19, 23, 31, 39, 57, 69, 93, 247, 299, 361, 403, 437, 589, 713, 741, 897, 961, 1083, 1209, 1311, 1767, 2139, 2883, 4693, 5681, 7657, 8303, 9269, 11191, 12493, 13547, 14079, 17043, 18259, 22103, 22971, 24909, 27807, 33573, 37479, 40641, 54777, 66309, 107939, 145483, 176111, 237367, 257393, 287339, 323817, 346921, 419957, 436449, 528333, 712101, 772179, 862017, 1040763, 1259871, 3346109, 4509973, 5459441, 7979183, 10038327, 13529919, 16378323, 23937549, 103729379, 311188137]

約数ペア:

[(1, 311188137), (3, 103729379), (13, 23937549), (19, 16378323), (23, 13529919), (31, 10038327), (39, 7979183), (57, 5459441), (69, 4509973), (93, 3346109), (247, 1259871), (299, 1040763), (361, 862017), (403, 772179), (437, 712101), (589, 528333), (713, 436449), (741, 419957), (897, 346921), (961, 323817), (1083, 287339), (1209, 257393), (1311, 237367), (1767, 176111), (2139, 145483), (2883, 107939), (4693, 66309), (5681, 54777), (7657, 40641), (8303, 37479), (9269, 33573), (11191, 27807), (12493, 24909), (13547, 22971), (14079, 22103), (17043, 18259)]