68707240

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{245383}}^1$

素因数の和:245401

約数の個数: 32

約数和(自身を含む): 176676480

約数和(自身を除く): 107969240

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 245383, 490766, 981532, 1226915, 1717681, 1963064, 2453830, 3435362, 4907660, 6870724, 8588405, 9815320, 13741448, 17176810, 34353620, 68707240]

約数ペア:

[(1, 68707240), (2, 34353620), (4, 17176810), (5, 13741448), (7, 9815320), (8, 8588405), (10, 6870724), (14, 4907660), (20, 3435362), (28, 2453830), (35, 1963064), (40, 1717681), (56, 1226915), (70, 981532), (140, 490766), (280, 245383)]