289881865

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{67}}^1\times {\mathrm{257}}^1$

素因数の和:386

約数の個数: 64

約数和(自身を含む): 448003584

約数和(自身を除く): 158121719

約数列:

[1, 5, 7, 13, 35, 37, 65, 67, 91, 185, 257, 259, 335, 455, 469, 481, 871, 1285, 1295, 1799, 2345, 2405, 2479, 3341, 3367, 4355, 6097, 8995, 9509, 12395, 16705, 16835, 17219, 17353, 23387, 30485, 32227, 47545, 66563, 86095, 86765, 116935, 120533, 123617, 161135, 223847, 225589, 332815, 602665, 618085, 637103, 865319, 1119235, 1127945, 1566929, 3185515, 4326595, 4459721, 7834645, 8282339, 22298605, 41411695, 57976373, 289881865]

約数ペア:

[(1, 289881865), (5, 57976373), (7, 41411695), (13, 22298605), (35, 8282339), (37, 7834645), (65, 4459721), (67, 4326595), (91, 3185515), (185, 1566929), (257, 1127945), (259, 1119235), (335, 865319), (455, 637103), (469, 618085), (481, 602665), (871, 332815), (1285, 225589), (1295, 223847), (1799, 161135), (2345, 123617), (2405, 120533), (2479, 116935), (3341, 86765), (3367, 86095), (4355, 66563), (6097, 47545), (8995, 32227), (9509, 30485), (12395, 23387), (16705, 17353), (16835, 17219)]