21807990136800

素因数分解:

$2^5\times 3^3\times 5^2\times 7^2\times {\mathrm{31}}^1\times {\mathrm{664667}}^1$

素因数の和:664741

約数の個数: 864

約数和(自身を含む): 94709128227840

約数和(自身を除く): 72901138091040

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 25, 27, 28, 30, 31, 32, 35, 36, 40, 42, 45, 48, 49, 50, 54, 56, 60, 62, 63, 70, 72, 75, 80, 84, 90, 93, 96, 98, 100, 105, 108, 112, 120, 124, 126, 135, 140, 144, 147, 150, 155, 160, 168, 175, 180, 186, 189, 196, 200, 210, 216, 217, 224, 225, 240, 245, 248, 252, 270, 279, 280, 288, 294, 300, 310, 315, 336, 350, 360, 372, 378, 392, 400, 420, 432, 434, 441, 450, 465, 480, 490, 496, 504, 525, 540, 558, 560, 588, 600, 620, 630, 651, 672, 675, 700, 720, 735, 744, 756, 775, 784, 800, 837, 840, 864, 868, 882, 900, 930, 945, 980, 992, 1008, 1050, 1080, 1085, 1116, 1120, 1176, 1200, 1225, 1240, 1260, 1302, 1323, 1350, 1395, 1400, 1440, 1470, 1488, 1512, 1519, 1550, 1568, 1575, 1674, 1680, 1736, 1764, 1800, 1860, 1890, 1953, 1960, 2016, 2100, 2160, 2170, 2205, 2232, 2325, 2352, 2400, 2450, 2480, 2520, 2604, 2646, 2700, 2790, 2800, 2940, 2976, 3024, 3038, 3100, 3150, 3255, 3348, 3360, 3472, 3528, 3600, 3675, 3720, 3780, 3906, 3920, 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約数ペア:

[(1, 21807990136800), (2, 10903995068400), (3, 7269330045600), (4, 5451997534200), (5, 4361598027360), (6, 3634665022800), (7, 3115427162400), (8, 2725998767100), (9, 2423110015200), (10, 2180799013680), (12, 1817332511400), (14, 1557713581200), (15, 1453866009120), (16, 1362999383550), (18, 1211555007600), (20, 1090399506840), (21, 1038475720800), (24, 908666255700), (25, 872319605472), (27, 807703338400), (28, 778856790600), (30, 726933004560), (31, 703483552800), (32, 681499691775), (35, 623085432480), (36, 605777503800), (40, 545199753420), (42, 519237860400), (45, 484622003040), (48, 454333127850), (49, 445061023200), (50, 436159802736), (54, 403851669200), (56, 389428395300), (60, 363466502280), (62, 351741776400), (63, 346158573600), (70, 311542716240), (72, 302888751900), (75, 290773201824), (80, 272599876710), (84, 259618930200), (90, 242311001520), (93, 234494517600), (96, 227166563925), (98, 222530511600), (100, 218079901368), (105, 207695144160), (108, 201925834600), (112, 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