31913000

素因数分解:

$2^3\times 5^3\times 7^1\times {\mathrm{47}}^1\times {\mathrm{97}}^1$

素因数の和:172

約数の個数: 128

約数和(自身を含む): 88058880

約数和(自身を除く): 56145880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 25, 28, 35, 40, 47, 50, 56, 70, 94, 97, 100, 125, 140, 175, 188, 194, 200, 235, 250, 280, 329, 350, 376, 388, 470, 485, 500, 658, 679, 700, 776, 875, 940, 970, 1000, 1175, 1316, 1358, 1400, 1645, 1750, 1880, 1940, 2350, 2425, 2632, 2716, 3290, 3395, 3500, 3880, 4559, 4700, 4850, 5432, 5875, 6580, 6790, 7000, 8225, 9118, 9400, 9700, 11750, 12125, 13160, 13580, 16450, 16975, 18236, 19400, 22795, 23500, 24250, 27160, 31913, 32900, 33950, 36472, 41125, 45590, 47000, 48500, 63826, 65800, 67900, 82250, 84875, 91180, 97000, 113975, 127652, 135800, 159565, 164500, 169750, 182360, 227950, 255304, 319130, 329000, 339500, 455900, 569875, 638260, 679000, 797825, 911800, 1139750, 1276520, 1595650, 2279500, 3191300, 3989125, 4559000, 6382600, 7978250, 15956500, 31913000]

約数ペア:

[(1, 31913000), (2, 15956500), (4, 7978250), (5, 6382600), (7, 4559000), (8, 3989125), (10, 3191300), (14, 2279500), (20, 1595650), (25, 1276520), (28, 1139750), (35, 911800), (40, 797825), (47, 679000), (50, 638260), (56, 569875), (70, 455900), (94, 339500), (97, 329000), (100, 319130), (125, 255304), (140, 227950), (175, 182360), (188, 169750), (194, 164500), (200, 159565), (235, 135800), (250, 127652), (280, 113975), (329, 97000), (350, 91180), (376, 84875), (388, 82250), (470, 67900), (485, 65800), (500, 63826), (658, 48500), (679, 47000), (700, 45590), (776, 41125), (875, 36472), (940, 33950), (970, 32900), (1000, 31913), (1175, 27160), (1316, 24250), (1358, 23500), (1400, 22795), (1645, 19400), (1750, 18236), (1880, 16975), (1940, 16450), (2350, 13580), (2425, 13160), (2632, 12125), (2716, 11750), (3290, 9700), (3395, 9400), (3500, 9118), (3880, 8225), (4559, 7000), (4700, 6790), (4850, 6580), (5432, 5875)]