280784100

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{197}}^1\times {\mathrm{4751}}^1$

素因数の和:4965

約数の個数: 72

約数和(自身を含む): 816697728

約数和(自身を除く): 535913628

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 25, 30, 50, 60, 75, 100, 150, 197, 300, 394, 591, 788, 985, 1182, 1970, 2364, 2955, 3940, 4751, 4925, 5910, 9502, 9850, 11820, 14253, 14775, 19004, 19700, 23755, 28506, 29550, 47510, 57012, 59100, 71265, 95020, 118775, 142530, 237550, 285060, 356325, 475100, 712650, 935947, 1425300, 1871894, 2807841, 3743788, 4679735, 5615682, 9359470, 11231364, 14039205, 18718940, 23398675, 28078410, 46797350, 56156820, 70196025, 93594700, 140392050, 280784100]

約数ペア:

[(1, 280784100), (2, 140392050), (3, 93594700), (4, 70196025), (5, 56156820), (6, 46797350), (10, 28078410), (12, 23398675), (15, 18718940), (20, 14039205), (25, 11231364), (30, 9359470), (50, 5615682), (60, 4679735), (75, 3743788), (100, 2807841), (150, 1871894), (197, 1425300), (300, 935947), (394, 712650), (591, 475100), (788, 356325), (985, 285060), (1182, 237550), (1970, 142530), (2364, 118775), (2955, 95020), (3940, 71265), (4751, 59100), (4925, 57012), (5910, 47510), (9502, 29550), (9850, 28506), (11820, 23755), (14253, 19700), (14775, 19004)]