25111940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{181}}^1\times {\mathrm{991}}^1$

素因数の和:1188

約数の個数: 48

約数和(自身を含む): 60662784

約数和(自身を除く): 35550844

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 181, 362, 724, 905, 991, 1267, 1810, 1982, 2534, 3620, 3964, 4955, 5068, 6335, 6937, 9910, 12670, 13874, 19820, 25340, 27748, 34685, 69370, 138740, 179371, 358742, 717484, 896855, 1255597, 1793710, 2511194, 3587420, 5022388, 6277985, 12555970, 25111940]

約数ペア:

[(1, 25111940), (2, 12555970), (4, 6277985), (5, 5022388), (7, 3587420), (10, 2511194), (14, 1793710), (20, 1255597), (28, 896855), (35, 717484), (70, 358742), (140, 179371), (181, 138740), (362, 69370), (724, 34685), (905, 27748), (991, 25340), (1267, 19820), (1810, 13874), (1982, 12670), (2534, 9910), (3620, 6937), (3964, 6335), (4955, 5068)]