78815380

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{562967}}^1$

素因数の和:562983

約数の個数: 24

約数和(自身を含む): 189157248

約数和(自身を除く): 110341868

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 562967, 1125934, 2251868, 2814835, 3940769, 5629670, 7881538, 11259340, 15763076, 19703845, 39407690, 78815380]

約数ペア:

[(1, 78815380), (2, 39407690), (4, 19703845), (5, 15763076), (7, 11259340), (10, 7881538), (14, 5629670), (20, 3940769), (28, 2814835), (35, 2251868), (70, 1125934), (140, 562967)]