39951380

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{2053}}^1$

素因数の和:2208

約数の個数: 48

約数和(自身を含む): 96620160

約数和(自身を除く): 56668780

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 139, 140, 278, 556, 695, 973, 1390, 1946, 2053, 2780, 3892, 4106, 4865, 8212, 9730, 10265, 14371, 19460, 20530, 28742, 41060, 57484, 71855, 143710, 285367, 287420, 570734, 1141468, 1426835, 1997569, 2853670, 3995138, 5707340, 7990276, 9987845, 19975690, 39951380]

約数ペア:

[(1, 39951380), (2, 19975690), (4, 9987845), (5, 7990276), (7, 5707340), (10, 3995138), (14, 2853670), (20, 1997569), (28, 1426835), (35, 1141468), (70, 570734), (139, 287420), (140, 285367), (278, 143710), (556, 71855), (695, 57484), (973, 41060), (1390, 28742), (1946, 20530), (2053, 19460), (2780, 14371), (3892, 10265), (4106, 9730), (4865, 8212)]