128451310

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{421}}^1\times {\mathrm{2347}}^1$

素因数の和:2788

約数の個数: 32

約数和(自身を含む): 249695712

約数和(自身を除く): 121244402

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 421, 842, 2105, 2347, 4210, 4694, 5473, 10946, 11735, 23470, 27365, 30511, 54730, 61022, 152555, 305110, 988087, 1976174, 4940435, 9880870, 12845131, 25690262, 64225655, 128451310]

約数ペア:

[(1, 128451310), (2, 64225655), (5, 25690262), (10, 12845131), (13, 9880870), (26, 4940435), (65, 1976174), (130, 988087), (421, 305110), (842, 152555), (2105, 61022), (2347, 54730), (4210, 30511), (4694, 27365), (5473, 23470), (10946, 11735)]