81551288

素因数分解:

$2^3\times 7^2\times {\mathrm{13}}^2\times {\mathrm{1231}}^1$

素因数の和:1277

約数の個数: 72

約数和(自身を含む): 192764880

約数和(自身を除く): 111213592

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 49, 52, 56, 91, 98, 104, 169, 182, 196, 338, 364, 392, 637, 676, 728, 1183, 1231, 1274, 1352, 2366, 2462, 2548, 4732, 4924, 5096, 8281, 8617, 9464, 9848, 16003, 16562, 17234, 32006, 33124, 34468, 60319, 64012, 66248, 68936, 112021, 120638, 128024, 208039, 224042, 241276, 416078, 448084, 482552, 784147, 832156, 896168, 1456273, 1568294, 1664312, 2912546, 3136588, 5825092, 6273176, 10193911, 11650184, 20387822, 40775644, 81551288]

約数ペア:

[(1, 81551288), (2, 40775644), (4, 20387822), (7, 11650184), (8, 10193911), (13, 6273176), (14, 5825092), (26, 3136588), (28, 2912546), (49, 1664312), (52, 1568294), (56, 1456273), (91, 896168), (98, 832156), (104, 784147), (169, 482552), (182, 448084), (196, 416078), (338, 241276), (364, 224042), (392, 208039), (637, 128024), (676, 120638), (728, 112021), (1183, 68936), (1231, 66248), (1274, 64012), (1352, 60319), (2366, 34468), (2462, 33124), (2548, 32006), (4732, 17234), (4924, 16562), (5096, 16003), (8281, 9848), (8617, 9464)]