257790392

素因数分解:

$2^3\times {\mathrm{61}}^1\times {\mathrm{107}}^1\times {\mathrm{4937}}^1$

素因数の和:5111

約数の個数: 32

約数和(自身を含む): 495972720

約数和(自身を除く): 238182328

約数列:

[1, 2, 4, 8, 61, 107, 122, 214, 244, 428, 488, 856, 4937, 6527, 9874, 13054, 19748, 26108, 39496, 52216, 301157, 528259, 602314, 1056518, 1204628, 2113036, 2409256, 4226072, 32223799, 64447598, 128895196, 257790392]

約数ペア:

[(1, 257790392), (2, 128895196), (4, 64447598), (8, 32223799), (61, 4226072), (107, 2409256), (122, 2113036), (214, 1204628), (244, 1056518), (428, 602314), (488, 528259), (856, 301157), (4937, 52216), (6527, 39496), (9874, 26108), (13054, 19748)]