78337240

素因数分解:

$2^3\times 5^1\times {\mathrm{1958431}}^1$

素因数の和:1958442

約数の個数: 16

約数和(自身を含む): 176258880

約数和(自身を除く): 97921640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1958431, 3916862, 7833724, 9792155, 15667448, 19584310, 39168620, 78337240]

約数ペア:

[(1, 78337240), (2, 39168620), (4, 19584310), (5, 15667448), (8, 9792155), (10, 7833724), (20, 3916862), (40, 1958431)]