28355880

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{33757}}^1$

素因数の和:33778

約数の個数: 64

約数和(自身を含む): 97223040

約数和(自身を除く): 68867160

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840, 33757, 67514, 101271, 135028, 168785, 202542, 236299, 270056, 337570, 405084, 472598, 506355, 675140, 708897, 810168, 945196, 1012710, 1181495, 1350280, 1417794, 1890392, 2025420, 2362990, 2835588, 3544485, 4050840, 4725980, 5671176, 7088970, 9451960, 14177940, 28355880]

約数ペア:

[(1, 28355880), (2, 14177940), (3, 9451960), (4, 7088970), (5, 5671176), (6, 4725980), (7, 4050840), (8, 3544485), (10, 2835588), (12, 2362990), (14, 2025420), (15, 1890392), (20, 1417794), (21, 1350280), (24, 1181495), (28, 1012710), (30, 945196), (35, 810168), (40, 708897), (42, 675140), (56, 506355), (60, 472598), (70, 405084), (84, 337570), (105, 270056), (120, 236299), (140, 202542), (168, 168785), (210, 135028), (280, 101271), (420, 67514), (840, 33757)]