25718875

素因数分解:

$5^3\times 7^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1$

素因数の和:78

約数の個数: 96

約数和(自身を含む): 44815680

約数和(自身を除く): 19096805

約数列:

[1, 5, 7, 13, 17, 19, 25, 35, 49, 65, 85, 91, 95, 119, 125, 133, 175, 221, 245, 247, 323, 325, 425, 455, 475, 595, 637, 665, 833, 875, 931, 1105, 1225, 1235, 1547, 1615, 1625, 1729, 2125, 2261, 2275, 2375, 2975, 3185, 3325, 4165, 4199, 4655, 5525, 6125, 6175, 7735, 8075, 8645, 10829, 11305, 11375, 12103, 14875, 15827, 15925, 16625, 20825, 20995, 23275, 27625, 29393, 30875, 38675, 40375, 43225, 54145, 56525, 60515, 79135, 79625, 104125, 104975, 116375, 146965, 193375, 205751, 216125, 270725, 282625, 302575, 395675, 524875, 734825, 1028755, 1353625, 1512875, 1978375, 3674125, 5143775, 25718875]

約数ペア:

[(1, 25718875), (5, 5143775), (7, 3674125), (13, 1978375), (17, 1512875), (19, 1353625), (25, 1028755), (35, 734825), (49, 524875), (65, 395675), (85, 302575), (91, 282625), (95, 270725), (119, 216125), (125, 205751), (133, 193375), (175, 146965), (221, 116375), (245, 104975), (247, 104125), (323, 79625), (325, 79135), (425, 60515), (455, 56525), (475, 54145), (595, 43225), (637, 40375), (665, 38675), (833, 30875), (875, 29393), (931, 27625), (1105, 23275), (1225, 20995), (1235, 20825), (1547, 16625), (1615, 15925), (1625, 15827), (1729, 14875), (2125, 12103), (2261, 11375), (2275, 11305), (2375, 10829), (2975, 8645), (3185, 8075), (3325, 7735), (4165, 6175), (4199, 6125), (4655, 5525)]