256280648

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{66601}}^1$

素因数の和:66657

約数の個数: 32

約数和(自身を含む): 531483960

約数和(自身を除く): 275203312

約数列:

[1, 2, 4, 8, 13, 26, 37, 52, 74, 104, 148, 296, 481, 962, 1924, 3848, 66601, 133202, 266404, 532808, 865813, 1731626, 2464237, 3463252, 4928474, 6926504, 9856948, 19713896, 32035081, 64070162, 128140324, 256280648]

約数ペア:

[(1, 256280648), (2, 128140324), (4, 64070162), (8, 32035081), (13, 19713896), (26, 9856948), (37, 6926504), (52, 4928474), (74, 3463252), (104, 2464237), (148, 1731626), (296, 865813), (481, 532808), (962, 266404), (1924, 133202), (3848, 66601)]