78800680

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{281431}}^1$

素因数の和:281449

約数の個数: 32

約数和(自身を含む): 202631040

約数和(自身を除く): 123830360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 281431, 562862, 1125724, 1407155, 1970017, 2251448, 2814310, 3940034, 5628620, 7880068, 9850085, 11257240, 15760136, 19700170, 39400340, 78800680]

約数ペア:

[(1, 78800680), (2, 39400340), (4, 19700170), (5, 15760136), (7, 11257240), (8, 9850085), (10, 7880068), (14, 5628620), (20, 3940034), (28, 2814310), (35, 2251448), (40, 1970017), (56, 1407155), (70, 1125724), (140, 562862), (280, 281431)]