538462225

素因数分解:

$5^2\times 7^2\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{151}}^1$

素因数の和:287

約数の個数: 72

約数和(自身を含む): 812198016

約数和(自身を除く): 273735791

約数列:

[1, 5, 7, 25, 35, 41, 49, 71, 151, 175, 205, 245, 287, 355, 497, 755, 1025, 1057, 1225, 1435, 1775, 2009, 2485, 2911, 3479, 3775, 5285, 6191, 7175, 7399, 10045, 10721, 12425, 14555, 17395, 20377, 26425, 30955, 36995, 43337, 50225, 53605, 72775, 75047, 86975, 101885, 142639, 154775, 184975, 216685, 268025, 303359, 375235, 439561, 509425, 525329, 713195, 1083425, 1516795, 1876175, 2197805, 2626645, 3076927, 3565975, 7583975, 10989025, 13133225, 15384635, 21538489, 76923175, 107692445, 538462225]

約数ペア:

[(1, 538462225), (5, 107692445), (7, 76923175), (25, 21538489), (35, 15384635), (41, 13133225), (49, 10989025), (71, 7583975), (151, 3565975), (175, 3076927), (205, 2626645), (245, 2197805), (287, 1876175), (355, 1516795), (497, 1083425), (755, 713195), (1025, 525329), (1057, 509425), (1225, 439561), (1435, 375235), (1775, 303359), (2009, 268025), (2485, 216685), (2911, 184975), (3479, 154775), (3775, 142639), (5285, 101885), (6191, 86975), (7175, 75047), (7399, 72775), (10045, 53605), (10721, 50225), (12425, 43337), (14555, 36995), (17395, 30955), (20377, 26425)]