87878791

素因数分解:

$7^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{347}}^1$

素因数の和:412

約数の個数: 48

約数和(自身を含む): 124411392

約数和(自身を除く): 36532601

約数列:

[1, 7, 11, 13, 23, 77, 91, 121, 143, 161, 253, 299, 347, 847, 1001, 1573, 1771, 2093, 2429, 2783, 3289, 3817, 4511, 7981, 11011, 19481, 23023, 26719, 31577, 36179, 41987, 49621, 55867, 87791, 103753, 253253, 293909, 347347, 545831, 614537, 726271, 965701, 1141283, 3820817, 6759907, 7988981, 12554113, 87878791]

約数ペア:

[(1, 87878791), (7, 12554113), (11, 7988981), (13, 6759907), (23, 3820817), (77, 1141283), (91, 965701), (121, 726271), (143, 614537), (161, 545831), (253, 347347), (299, 293909), (347, 253253), (847, 103753), (1001, 87791), (1573, 55867), (1771, 49621), (2093, 41987), (2429, 36179), (2783, 31577), (3289, 26719), (3817, 23023), (4511, 19481), (7981, 11011)]