261609908

素因数分解:

$2^2\times 7^1\times {\mathrm{53}}^1\times {\mathrm{173}}^1\times {\mathrm{1019}}^1$

素因数の和:1256

約数の個数: 48

約数和(自身を含む): 536699520

約数和(自身を除く): 275089612

約数列:

[1, 2, 4, 7, 14, 28, 53, 106, 173, 212, 346, 371, 692, 742, 1019, 1211, 1484, 2038, 2422, 4076, 4844, 7133, 9169, 14266, 18338, 28532, 36676, 54007, 64183, 108014, 128366, 176287, 216028, 256732, 352574, 378049, 705148, 756098, 1234009, 1512196, 2468018, 4936036, 9343211, 18686422, 37372844, 65402477, 130804954, 261609908]

約数ペア:

[(1, 261609908), (2, 130804954), (4, 65402477), (7, 37372844), (14, 18686422), (28, 9343211), (53, 4936036), (106, 2468018), (173, 1512196), (212, 1234009), (346, 756098), (371, 705148), (692, 378049), (742, 352574), (1019, 256732), (1211, 216028), (1484, 176287), (2038, 128366), (2422, 108014), (4076, 64183), (4844, 54007), (7133, 36676), (9169, 28532), (14266, 18338)]