78446840

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{115363}}^1$

素因数の和:115391

約数の個数: 32

約数和(自身を含む): 186889680

約数和(自身を除く): 108442840

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 115363, 230726, 461452, 576815, 922904, 1153630, 1961171, 2307260, 3922342, 4614520, 7844684, 9805855, 15689368, 19611710, 39223420, 78446840]

約数ペア:

[(1, 78446840), (2, 39223420), (4, 19611710), (5, 15689368), (8, 9805855), (10, 7844684), (17, 4614520), (20, 3922342), (34, 2307260), (40, 1961171), (68, 1153630), (85, 922904), (136, 576815), (170, 461452), (340, 230726), (680, 115363)]