261522248

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{307}}^1\times {\mathrm{8191}}^1$

素因数の和:8517

約数の個数: 32

約数和(自身を含む): 529858560

約数和(自身を除く): 268336312

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 307, 614, 1228, 2456, 3991, 7982, 8191, 15964, 16382, 31928, 32764, 65528, 106483, 212966, 425932, 851864, 2514637, 5029274, 10058548, 20117096, 32690281, 65380562, 130761124, 261522248]

約数ペア:

[(1, 261522248), (2, 130761124), (4, 65380562), (8, 32690281), (13, 20117096), (26, 10058548), (52, 5029274), (104, 2514637), (307, 851864), (614, 425932), (1228, 212966), (2456, 106483), (3991, 65528), (7982, 32764), (8191, 31928), (15964, 16382)]