25538216

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{397}}^1$

素因数の和:474

約数の個数: 64

約数和(自身を含む): 56738880

約数和(自身を除く): 31200664

約数列:

[1, 2, 4, 8, 11, 17, 22, 34, 43, 44, 68, 86, 88, 136, 172, 187, 344, 374, 397, 473, 731, 748, 794, 946, 1462, 1496, 1588, 1892, 2924, 3176, 3784, 4367, 5848, 6749, 8041, 8734, 13498, 16082, 17071, 17468, 26996, 32164, 34142, 34936, 53992, 64328, 68284, 74239, 136568, 148478, 187781, 290207, 296956, 375562, 580414, 593912, 751124, 1160828, 1502248, 2321656, 3192277, 6384554, 12769108, 25538216]

約数ペア:

[(1, 25538216), (2, 12769108), (4, 6384554), (8, 3192277), (11, 2321656), (17, 1502248), (22, 1160828), (34, 751124), (43, 593912), (44, 580414), (68, 375562), (86, 296956), (88, 290207), (136, 187781), (172, 148478), (187, 136568), (344, 74239), (374, 68284), (397, 64328), (473, 53992), (731, 34936), (748, 34142), (794, 32164), (946, 26996), (1462, 17468), (1496, 17071), (1588, 16082), (1892, 13498), (2924, 8734), (3176, 8041), (3784, 6749), (4367, 5848)]