19247900

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{887}}^1$

素因数の和:939

約数の個数: 72

約数和(自身を含む): 49330176

約数和(自身を除く): 30082276

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 31, 35, 50, 62, 70, 100, 124, 140, 155, 175, 217, 310, 350, 434, 620, 700, 775, 868, 887, 1085, 1550, 1774, 2170, 3100, 3548, 4340, 4435, 5425, 6209, 8870, 10850, 12418, 17740, 21700, 22175, 24836, 27497, 31045, 44350, 54994, 62090, 88700, 109988, 124180, 137485, 155225, 192479, 274970, 310450, 384958, 549940, 620900, 687425, 769916, 962395, 1374850, 1924790, 2749700, 3849580, 4811975, 9623950, 19247900]

約数ペア:

[(1, 19247900), (2, 9623950), (4, 4811975), (5, 3849580), (7, 2749700), (10, 1924790), (14, 1374850), (20, 962395), (25, 769916), (28, 687425), (31, 620900), (35, 549940), (50, 384958), (62, 310450), (70, 274970), (100, 192479), (124, 155225), (140, 137485), (155, 124180), (175, 109988), (217, 88700), (310, 62090), (350, 54994), (434, 44350), (620, 31045), (700, 27497), (775, 24836), (868, 22175), (887, 21700), (1085, 17740), (1550, 12418), (1774, 10850), (2170, 8870), (3100, 6209), (3548, 5425), (4340, 4435)]