261511288

素因数分解:

$2^3\times {\mathrm{19}}^2\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{127}}^1$

素因数の和:225

約数の個数: 96

約数和(自身を含む): 561807360

約数和(自身を除く): 300296072

約数列:

[1, 2, 4, 8, 19, 23, 31, 38, 46, 62, 76, 92, 124, 127, 152, 184, 248, 254, 361, 437, 508, 589, 713, 722, 874, 1016, 1178, 1426, 1444, 1748, 2356, 2413, 2852, 2888, 2921, 3496, 3937, 4712, 4826, 5704, 5842, 7874, 8303, 9652, 11191, 11684, 13547, 15748, 16606, 19304, 22382, 23368, 27094, 31496, 33212, 44764, 45847, 54188, 55499, 66424, 74803, 89528, 90551, 91694, 108376, 110998, 149606, 181102, 183388, 221996, 257393, 299212, 362204, 366776, 443992, 514786, 598424, 724408, 1029572, 1054481, 1421257, 1720469, 2059144, 2108962, 2842514, 3440938, 4217924, 5685028, 6881876, 8435848, 11370056, 13763752, 32688911, 65377822, 130755644, 261511288]

約数ペア:

[(1, 261511288), (2, 130755644), (4, 65377822), (8, 32688911), (19, 13763752), (23, 11370056), (31, 8435848), (38, 6881876), (46, 5685028), (62, 4217924), (76, 3440938), (92, 2842514), (124, 2108962), (127, 2059144), (152, 1720469), (184, 1421257), (248, 1054481), (254, 1029572), (361, 724408), (437, 598424), (508, 514786), (589, 443992), (713, 366776), (722, 362204), (874, 299212), (1016, 257393), (1178, 221996), (1426, 183388), (1444, 181102), (1748, 149606), (2356, 110998), (2413, 108376), (2852, 91694), (2888, 90551), (2921, 89528), (3496, 74803), (3937, 66424), (4712, 55499), (4826, 54188), (5704, 45847), (5842, 44764), (7874, 33212), (8303, 31496), (9652, 27094), (11191, 23368), (11684, 22382), (13547, 19304), (15748, 16606)]