256856880

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{3253}}^1$

素因数の和:3323

約数の個数: 160

約数和(自身を含む): 929654784

約数和(自身を除く): 672797904

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 47, 48, 56, 60, 70, 80, 84, 94, 105, 112, 120, 140, 141, 168, 188, 210, 235, 240, 280, 282, 329, 336, 376, 420, 470, 560, 564, 658, 705, 752, 840, 940, 987, 1128, 1316, 1410, 1645, 1680, 1880, 1974, 2256, 2632, 2820, 3253, 3290, 3760, 3948, 4935, 5264, 5640, 6506, 6580, 7896, 9759, 9870, 11280, 13012, 13160, 15792, 16265, 19518, 19740, 22771, 26024, 26320, 32530, 39036, 39480, 45542, 48795, 52048, 65060, 68313, 78072, 78960, 91084, 97590, 113855, 130120, 136626, 152891, 156144, 182168, 195180, 227710, 260240, 273252, 305782, 341565, 364336, 390360, 455420, 458673, 546504, 611564, 683130, 764455, 780720, 910840, 917346, 1070237, 1093008, 1223128, 1366260, 1528910, 1821680, 1834692, 2140474, 2293365, 2446256, 2732520, 3057820, 3210711, 3669384, 4280948, 4586730, 5351185, 5465040, 6115640, 6421422, 7338768, 8561896, 9173460, 10702370, 12231280, 12842844, 16053555, 17123792, 18346920, 21404740, 25685688, 32107110, 36693840, 42809480, 51371376, 64214220, 85618960, 128428440, 256856880]

約数ペア:

[(1, 256856880), (2, 128428440), (3, 85618960), (4, 64214220), (5, 51371376), (6, 42809480), (7, 36693840), (8, 32107110), (10, 25685688), (12, 21404740), (14, 18346920), (15, 17123792), (16, 16053555), (20, 12842844), (21, 12231280), (24, 10702370), (28, 9173460), (30, 8561896), (35, 7338768), (40, 6421422), (42, 6115640), (47, 5465040), (48, 5351185), (56, 4586730), (60, 4280948), (70, 3669384), (80, 3210711), (84, 3057820), (94, 2732520), (105, 2446256), (112, 2293365), (120, 2140474), (140, 1834692), (141, 1821680), (168, 1528910), (188, 1366260), (210, 1223128), (235, 1093008), (240, 1070237), (280, 917346), (282, 910840), (329, 780720), (336, 764455), (376, 683130), (420, 611564), (470, 546504), (560, 458673), (564, 455420), (658, 390360), (705, 364336), (752, 341565), (840, 305782), (940, 273252), (987, 260240), (1128, 227710), (1316, 195180), (1410, 182168), (1645, 156144), (1680, 152891), (1880, 136626), (1974, 130120), (2256, 113855), (2632, 97590), (2820, 91084), (3253, 78960), (3290, 78072), (3760, 68313), (3948, 65060), (4935, 52048), (5264, 48795), (5640, 45542), (6506, 39480), (6580, 39036), (7896, 32530), (9759, 26320), (9870, 26024), (11280, 22771), (13012, 19740), (13160, 19518), (15792, 16265)]