1231567225

素因数分解:

$5^2\times 7^3\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{113}}^1$

素因数の和:216

約数の個数: 96

約数和(自身を含む): 1899878400

約数和(自身を除く): 668311175

約数列:

[1, 5, 7, 25, 31, 35, 41, 49, 113, 155, 175, 205, 217, 245, 287, 343, 565, 775, 791, 1025, 1085, 1225, 1271, 1435, 1519, 1715, 2009, 2825, 3503, 3955, 4633, 5425, 5537, 6355, 7175, 7595, 8575, 8897, 10045, 10633, 14063, 17515, 19775, 23165, 24521, 27685, 31775, 32431, 37975, 38759, 44485, 50225, 53165, 62279, 70315, 87575, 115825, 122605, 138425, 143623, 162155, 171647, 193795, 222425, 227017, 265825, 311395, 351575, 435953, 613025, 718115, 810775, 858235, 968975, 1005361, 1135085, 1201529, 1556975, 1589119, 2179765, 3590575, 4291175, 5026805, 5675425, 6007645, 7037527, 7945595, 10898825, 25134025, 30038225, 35187635, 39727975, 49262689, 175938175, 246313445, 1231567225]

約数ペア:

[(1, 1231567225), (5, 246313445), (7, 175938175), (25, 49262689), (31, 39727975), (35, 35187635), (41, 30038225), (49, 25134025), (113, 10898825), (155, 7945595), (175, 7037527), (205, 6007645), (217, 5675425), (245, 5026805), (287, 4291175), (343, 3590575), (565, 2179765), (775, 1589119), (791, 1556975), (1025, 1201529), (1085, 1135085), (1225, 1005361), (1271, 968975), (1435, 858235), (1519, 810775), (1715, 718115), (2009, 613025), (2825, 435953), (3503, 351575), (3955, 311395), (4633, 265825), (5425, 227017), (5537, 222425), (6355, 193795), (7175, 171647), (7595, 162155), (8575, 143623), (8897, 138425), (10045, 122605), (10633, 115825), (14063, 87575), (17515, 70315), (19775, 62279), (23165, 53165), (24521, 50225), (27685, 44485), (31775, 38759), (32431, 37975)]