261952418

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{1601}}^1$

素因数の和:1683

約数の個数: 64

約数和(自身を含む): 516741120

約数和(自身を除く): 254788702

約数列:

[1, 2, 7, 13, 14, 26, 29, 31, 58, 62, 91, 182, 203, 217, 377, 403, 406, 434, 754, 806, 899, 1601, 1798, 2639, 2821, 3202, 5278, 5642, 6293, 11207, 11687, 12586, 20813, 22414, 23374, 41626, 46429, 49631, 81809, 92858, 99262, 145691, 163618, 291382, 325003, 347417, 603577, 645203, 650006, 694834, 1207154, 1290406, 1439299, 2878598, 4225039, 4516421, 8450078, 9032842, 10075093, 18710887, 20150186, 37421774, 130976209, 261952418]

約数ペア:

[(1, 261952418), (2, 130976209), (7, 37421774), (13, 20150186), (14, 18710887), (26, 10075093), (29, 9032842), (31, 8450078), (58, 4516421), (62, 4225039), (91, 2878598), (182, 1439299), (203, 1290406), (217, 1207154), (377, 694834), (403, 650006), (406, 645203), (434, 603577), (754, 347417), (806, 325003), (899, 291382), (1601, 163618), (1798, 145691), (2639, 99262), (2821, 92858), (3202, 81809), (5278, 49631), (5642, 46429), (6293, 41626), (11207, 23374), (11687, 22414), (12586, 20813)]