56399915

素因数分解:

$5^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{101}}^1$

素因数の和:212

約数の個数: 48

約数和(自身を含む): 82047168

約数和(自身を除く): 25647253

約数列:

[1, 5, 11, 13, 55, 65, 71, 101, 121, 143, 355, 505, 605, 715, 781, 923, 1111, 1313, 1573, 3905, 4615, 5555, 6565, 7171, 7865, 8591, 10153, 12221, 14443, 35855, 42955, 50765, 61105, 72215, 78881, 93223, 111683, 158873, 394405, 466115, 558415, 794365, 867691, 1025453, 4338455, 5127265, 11279983, 56399915]

約数ペア:

[(1, 56399915), (5, 11279983), (11, 5127265), (13, 4338455), (55, 1025453), (65, 867691), (71, 794365), (101, 558415), (121, 466115), (143, 394405), (355, 158873), (505, 111683), (605, 93223), (715, 78881), (781, 72215), (923, 61105), (1111, 50765), (1313, 42955), (1573, 35855), (3905, 14443), (4615, 12221), (5555, 10153), (6565, 8591), (7171, 7865)]