68632640

素因数分解:

$2^6\times 5^1\times {\mathrm{139}}^1\times {\mathrm{1543}}^1$

素因数の和:1699

約数の個数: 56

約数和(自身を含む): 164713920

約数和(自身を除く): 96081280

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 139, 160, 278, 320, 556, 695, 1112, 1390, 1543, 2224, 2780, 3086, 4448, 5560, 6172, 7715, 8896, 11120, 12344, 15430, 22240, 24688, 30860, 44480, 49376, 61720, 98752, 123440, 214477, 246880, 428954, 493760, 857908, 1072385, 1715816, 2144770, 3431632, 4289540, 6863264, 8579080, 13726528, 17158160, 34316320, 68632640]

約数ペア:

[(1, 68632640), (2, 34316320), (4, 17158160), (5, 13726528), (8, 8579080), (10, 6863264), (16, 4289540), (20, 3431632), (32, 2144770), (40, 1715816), (64, 1072385), (80, 857908), (139, 493760), (160, 428954), (278, 246880), (320, 214477), (556, 123440), (695, 98752), (1112, 61720), (1390, 49376), (1543, 44480), (2224, 30860), (2780, 24688), (3086, 22240), (4448, 15430), (5560, 12344), (6172, 11120), (7715, 8896)]