28309240

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{193}}^2$

素因数の和:416

約数の個数: 48

約数和(自身を含む): 67397400

約数和(自身を除く): 39088160

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 193, 380, 386, 760, 772, 965, 1544, 1930, 3667, 3860, 7334, 7720, 14668, 18335, 29336, 36670, 37249, 73340, 74498, 146680, 148996, 186245, 297992, 372490, 707731, 744980, 1415462, 1489960, 2830924, 3538655, 5661848, 7077310, 14154620, 28309240]

約数ペア:

[(1, 28309240), (2, 14154620), (4, 7077310), (5, 5661848), (8, 3538655), (10, 2830924), (19, 1489960), (20, 1415462), (38, 744980), (40, 707731), (76, 372490), (95, 297992), (152, 186245), (190, 148996), (193, 146680), (380, 74498), (386, 73340), (760, 37249), (772, 36670), (965, 29336), (1544, 18335), (1930, 14668), (3667, 7720), (3860, 7334)]