257386168

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{919}}^1\times {\mathrm{2693}}^1$

素因数の和:3631

約数の個数: 32

約数和(自身を含む): 520480800

約数和(自身を除く): 263094632

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 919, 1838, 2693, 3676, 5386, 7352, 10772, 11947, 21544, 23894, 35009, 47788, 70018, 95576, 140036, 280072, 2474867, 4949734, 9899468, 19798936, 32173271, 64346542, 128693084, 257386168]

約数ペア:

[(1, 257386168), (2, 128693084), (4, 64346542), (8, 32173271), (13, 19798936), (26, 9899468), (52, 4949734), (104, 2474867), (919, 280072), (1838, 140036), (2693, 95576), (3676, 70018), (5386, 47788), (7352, 35009), (10772, 23894), (11947, 21544)]