20191825

素因数分解:

$5^2\times {\mathrm{37}}^1\times {\mathrm{83}}^1\times {\mathrm{263}}^1$

素因数の和:393

約数の個数: 24

約数和(自身を含む): 26123328

約数和(自身を除く): 5931503

約数列:

[1, 5, 25, 37, 83, 185, 263, 415, 925, 1315, 2075, 3071, 6575, 9731, 15355, 21829, 48655, 76775, 109145, 243275, 545725, 807673, 4038365, 20191825]

約数ペア:

[(1, 20191825), (5, 4038365), (25, 807673), (37, 545725), (83, 243275), (185, 109145), (263, 76775), (415, 48655), (925, 21829), (1315, 15355), (2075, 9731), (3071, 6575)]