261912196

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{19447}}^1$

素因数の和:19508

約数の個数: 48

約数和(自身を含む): 579394816

約数和(自身を除く): 317482620

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 37, 52, 74, 91, 148, 182, 259, 364, 481, 518, 962, 1036, 1924, 3367, 6734, 13468, 19447, 38894, 77788, 136129, 252811, 272258, 505622, 544516, 719539, 1011244, 1439078, 1769677, 2878156, 3539354, 5036773, 7078708, 9354007, 10073546, 18708014, 20147092, 37416028, 65478049, 130956098, 261912196]

約数ペア:

[(1, 261912196), (2, 130956098), (4, 65478049), (7, 37416028), (13, 20147092), (14, 18708014), (26, 10073546), (28, 9354007), (37, 7078708), (52, 5036773), (74, 3539354), (91, 2878156), (148, 1769677), (182, 1439078), (259, 1011244), (364, 719539), (481, 544516), (518, 505622), (962, 272258), (1036, 252811), (1924, 136129), (3367, 77788), (6734, 38894), (13468, 19447)]