78914156972

素因数分解:

$2^2\times 7^1\times {\mathrm{139}}^1\times {\mathrm{20275991}}^1$

素因数の和:20276141

約数の個数: 24

約数和(自身を含む): 158963777280

約数和(自身を除く): 80049620308

約数列:

[1, 2, 4, 7, 14, 28, 139, 278, 556, 973, 1946, 3892, 20275991, 40551982, 81103964, 141931937, 283863874, 567727748, 2818362749, 5636725498, 11273450996, 19728539243, 39457078486, 78914156972]

約数ペア:

[(1, 78914156972), (2, 39457078486), (4, 19728539243), (7, 11273450996), (14, 5636725498), (28, 2818362749), (139, 567727748), (278, 283863874), (556, 141931937), (973, 81103964), (1946, 40551982), (3892, 20275991)]