21786982049280

素因数分解:

$2^9\times 3^1\times 5^1\times 7^2\times {\mathrm{41}}^1\times {\mathrm{163}}^1\times {\mathrm{8663}}^1$

素因数の和:8907

約数の個数: 960

約数和(自身を含む): 83516697589248

約数和(自身を除く): 61729715539968

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 32, 35, 40, 41, 42, 48, 49, 56, 60, 64, 70, 80, 82, 84, 96, 98, 105, 112, 120, 123, 128, 140, 147, 160, 163, 164, 168, 192, 196, 205, 210, 224, 240, 245, 246, 256, 280, 287, 294, 320, 326, 328, 336, 384, 392, 410, 420, 448, 480, 489, 490, 492, 512, 560, 574, 588, 615, 640, 652, 656, 672, 735, 768, 784, 815, 820, 840, 861, 896, 960, 978, 980, 984, 1120, 1141, 1148, 1176, 1230, 1280, 1304, 1312, 1344, 1435, 1470, 1536, 1568, 1630, 1640, 1680, 1722, 1792, 1920, 1956, 1960, 1968, 2009, 2240, 2282, 2296, 2352, 2445, 2460, 2560, 2608, 2624, 2688, 2870, 2940, 3136, 3260, 3280, 3360, 3423, 3444, 3584, 3840, 3912, 3920, 3936, 4018, 4305, 4480, 4564, 4592, 4704, 4890, 4920, 5216, 5248, 5376, 5705, 5740, 5880, 6027, 6272, 6520, 6560, 6683, 6720, 6846, 6888, 7680, 7824, 7840, 7872, 7987, 8036, 8610, 8663, 8960, 9128, 9184, 9408, 9780, 9840, 10045, 10432, 10496, 10752, 11410, 11480, 11760, 12054, 12544, 13040, 13120, 13366, 13440, 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約数ペア:

[(1, 21786982049280), (2, 10893491024640), (3, 7262327349760), (4, 5446745512320), (5, 4357396409856), (6, 3631163674880), (7, 3112426007040), (8, 2723372756160), (10, 2178698204928), (12, 1815581837440), (14, 1556213003520), (15, 1452465469952), (16, 1361686378080), (20, 1089349102464), (21, 1037475335680), (24, 907790918720), (28, 778106501760), (30, 726232734976), (32, 680843189040), (35, 622485201408), (40, 544674551232), (41, 531389806080), (42, 518737667840), (48, 453895459360), (49, 444632286720), (56, 389053250880), (60, 363116367488), (64, 340421594520), (70, 311242600704), (80, 272337275616), (82, 265694903040), (84, 259368833920), (96, 226947729680), (98, 222316143360), (105, 207495067136), (112, 194526625440), (120, 181558183744), (123, 177129935360), (128, 170210797260), (140, 155621300352), (147, 148210762240), (160, 136168637808), (163, 133662466560), (164, 132847451520), (168, 129684416960), (192, 113473864840), (196, 111158071680), (205, 106277961216), (210, 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