78136940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{558121}}^1$

素因数の和:558137

約数の個数: 24

約数和(自身を含む): 187528992

約数和(自身を除く): 109392052

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 558121, 1116242, 2232484, 2790605, 3906847, 5581210, 7813694, 11162420, 15627388, 19534235, 39068470, 78136940]

約数ペア:

[(1, 78136940), (2, 39068470), (4, 19534235), (5, 15627388), (7, 11162420), (10, 7813694), (14, 5581210), (20, 3906847), (28, 2790605), (35, 2232484), (70, 1116242), (140, 558121)]