28406805

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{491}}^1$

素因数の和:554

約数の個数: 64

約数和(自身を含む): 56678400

約数和(自身を除く): 28271595

約数列:

[1, 3, 5, 7, 15, 19, 21, 29, 35, 57, 87, 95, 105, 133, 145, 203, 285, 399, 435, 491, 551, 609, 665, 1015, 1473, 1653, 1995, 2455, 2755, 3045, 3437, 3857, 7365, 8265, 9329, 10311, 11571, 14239, 17185, 19285, 27987, 42717, 46645, 51555, 57855, 65303, 71195, 99673, 139935, 195909, 213585, 270541, 299019, 326515, 498365, 811623, 979545, 1352705, 1495095, 1893787, 4058115, 5681361, 9468935, 28406805]

約数ペア:

[(1, 28406805), (3, 9468935), (5, 5681361), (7, 4058115), (15, 1893787), (19, 1495095), (21, 1352705), (29, 979545), (35, 811623), (57, 498365), (87, 326515), (95, 299019), (105, 270541), (133, 213585), (145, 195909), (203, 139935), (285, 99673), (399, 71195), (435, 65303), (491, 57855), (551, 51555), (609, 46645), (665, 42717), (1015, 27987), (1473, 19285), (1653, 17185), (1995, 14239), (2455, 11571), (2755, 10311), (3045, 9329), (3437, 8265), (3857, 7365)]