1280594432

素因数分解:

$2^9\times {\mathrm{13}}^1\times {\mathrm{421}}^1\times {\mathrm{457}}^1$

素因数の和:909

約数の個数: 80

約数和(自身を含む): 2768098872

約数和(自身を除く): 1487504440

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 104, 128, 208, 256, 416, 421, 457, 512, 832, 842, 914, 1664, 1684, 1828, 3328, 3368, 3656, 5473, 5941, 6656, 6736, 7312, 10946, 11882, 13472, 14624, 21892, 23764, 26944, 29248, 43784, 47528, 53888, 58496, 87568, 95056, 107776, 116992, 175136, 190112, 192397, 215552, 233984, 350272, 380224, 384794, 700544, 760448, 769588, 1401088, 1520896, 1539176, 2501161, 2802176, 3041792, 3078352, 5002322, 6156704, 10004644, 12313408, 20009288, 24626816, 40018576, 49253632, 80037152, 98507264, 160074304, 320148608, 640297216, 1280594432]

約数ペア:

[(1, 1280594432), (2, 640297216), (4, 320148608), (8, 160074304), (13, 98507264), (16, 80037152), (26, 49253632), (32, 40018576), (52, 24626816), (64, 20009288), (104, 12313408), (128, 10004644), (208, 6156704), (256, 5002322), (416, 3078352), (421, 3041792), (457, 2802176), (512, 2501161), (832, 1539176), (842, 1520896), (914, 1401088), (1664, 769588), (1684, 760448), (1828, 700544), (3328, 384794), (3368, 380224), (3656, 350272), (5473, 233984), (5941, 215552), (6656, 192397), (6736, 190112), (7312, 175136), (10946, 116992), (11882, 107776), (13472, 95056), (14624, 87568), (21892, 58496), (23764, 53888), (26944, 47528), (29248, 43784)]