20804628

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{193}}^1\times {\mathrm{691}}^1$

素因数の和:904

約数の個数: 48

約数和(自身を含む): 52625216

約数和(自身を除く): 31820588

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156, 193, 386, 579, 691, 772, 1158, 1382, 2073, 2316, 2509, 2764, 4146, 5018, 7527, 8292, 8983, 10036, 15054, 17966, 26949, 30108, 35932, 53898, 107796, 133363, 266726, 400089, 533452, 800178, 1600356, 1733719, 3467438, 5201157, 6934876, 10402314, 20804628]

約数ペア:

[(1, 20804628), (2, 10402314), (3, 6934876), (4, 5201157), (6, 3467438), (12, 1733719), (13, 1600356), (26, 800178), (39, 533452), (52, 400089), (78, 266726), (156, 133363), (193, 107796), (386, 53898), (579, 35932), (691, 30108), (772, 26949), (1158, 17966), (1382, 15054), (2073, 10036), (2316, 8983), (2509, 8292), (2764, 7527), (4146, 5018)]