19680796

素因数分解:

$2^2\times {\mathrm{61}}^1\times {\mathrm{79}}^1\times {\mathrm{1021}}^1$

素因数の和:1165

約数の個数: 24

約数和(自身を含む): 35483840

約数和(自身を除く): 15803044

約数列:

[1, 2, 4, 61, 79, 122, 158, 244, 316, 1021, 2042, 4084, 4819, 9638, 19276, 62281, 80659, 124562, 161318, 249124, 322636, 4920199, 9840398, 19680796]

約数ペア:

[(1, 19680796), (2, 9840398), (4, 4920199), (61, 322636), (79, 249124), (122, 161318), (158, 124562), (244, 80659), (316, 62281), (1021, 19276), (2042, 9638), (4084, 4819)]