261528462

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{31}}^2\times {\mathrm{1163}}^1$

素因数の和:1246

約数の個数: 72

約数和(自身を含む): 631095192

約数和(自身を除く): 369566730

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 31, 39, 62, 78, 93, 117, 186, 234, 279, 403, 558, 806, 961, 1163, 1209, 1922, 2326, 2418, 2883, 3489, 3627, 5766, 6978, 7254, 8649, 10467, 12493, 15119, 17298, 20934, 24986, 30238, 36053, 37479, 45357, 72106, 74958, 90714, 108159, 112437, 136071, 216318, 224874, 272142, 324477, 468689, 648954, 937378, 1117643, 1406067, 2235286, 2812134, 3352929, 4218201, 6705858, 8436402, 10058787, 14529359, 20117574, 29058718, 43588077, 87176154, 130764231, 261528462]

約数ペア:

[(1, 261528462), (2, 130764231), (3, 87176154), (6, 43588077), (9, 29058718), (13, 20117574), (18, 14529359), (26, 10058787), (31, 8436402), (39, 6705858), (62, 4218201), (78, 3352929), (93, 2812134), (117, 2235286), (186, 1406067), (234, 1117643), (279, 937378), (403, 648954), (558, 468689), (806, 324477), (961, 272142), (1163, 224874), (1209, 216318), (1922, 136071), (2326, 112437), (2418, 108159), (2883, 90714), (3489, 74958), (3627, 72106), (5766, 45357), (6978, 37479), (7254, 36053), (8649, 30238), (10467, 24986), (12493, 20934), (15119, 17298)]