261717872

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{1097}}^1$

素因数の和:1186

約数の個数: 80

約数和(自身を含む): 579462912

約数和(自身を除く): 317745040

約数列:

[1, 2, 4, 8, 13, 16, 26, 31, 37, 52, 62, 74, 104, 124, 148, 208, 248, 296, 403, 481, 496, 592, 806, 962, 1097, 1147, 1612, 1924, 2194, 2294, 3224, 3848, 4388, 4588, 6448, 7696, 8776, 9176, 14261, 14911, 17552, 18352, 28522, 29822, 34007, 40589, 57044, 59644, 68014, 81178, 114088, 119288, 136028, 162356, 228176, 238576, 272056, 324712, 442091, 527657, 544112, 649424, 884182, 1055314, 1258259, 1768364, 2110628, 2516518, 3536728, 4221256, 5033036, 7073456, 8442512, 10066072, 16357367, 20132144, 32714734, 65429468, 130858936, 261717872]

約数ペア:

[(1, 261717872), (2, 130858936), (4, 65429468), (8, 32714734), (13, 20132144), (16, 16357367), (26, 10066072), (31, 8442512), (37, 7073456), (52, 5033036), (62, 4221256), (74, 3536728), (104, 2516518), (124, 2110628), (148, 1768364), (208, 1258259), (248, 1055314), (296, 884182), (403, 649424), (481, 544112), (496, 527657), (592, 442091), (806, 324712), (962, 272056), (1097, 238576), (1147, 228176), (1612, 162356), (1924, 136028), (2194, 119288), (2294, 114088), (3224, 81178), (3848, 68014), (4388, 59644), (4588, 57044), (6448, 40589), (7696, 34007), (8776, 29822), (9176, 28522), (14261, 18352), (14911, 17552)]