21132720

素因数分解:

$2^4\times 3^2\times 5^1\times 7^2\times {\mathrm{599}}^1$

素因数の和:632

約数の個数: 180

約数和(自身を含む): 82695600

約数和(自身を除く): 61562880

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 35, 36, 40, 42, 45, 48, 49, 56, 60, 63, 70, 72, 80, 84, 90, 98, 105, 112, 120, 126, 140, 144, 147, 168, 180, 196, 210, 240, 245, 252, 280, 294, 315, 336, 360, 392, 420, 441, 490, 504, 560, 588, 599, 630, 720, 735, 784, 840, 882, 980, 1008, 1176, 1198, 1260, 1470, 1680, 1764, 1797, 1960, 2205, 2352, 2396, 2520, 2940, 2995, 3528, 3594, 3920, 4193, 4410, 4792, 5040, 5391, 5880, 5990, 7056, 7188, 8386, 8820, 8985, 9584, 10782, 11760, 11980, 12579, 14376, 16772, 17640, 17970, 20965, 21564, 23960, 25158, 26955, 28752, 29351, 33544, 35280, 35940, 37737, 41930, 43128, 47920, 50316, 53910, 58702, 62895, 67088, 71880, 75474, 83860, 86256, 88053, 100632, 107820, 117404, 125790, 143760, 146755, 150948, 167720, 176106, 188685, 201264, 215640, 234808, 251580, 264159, 293510, 301896, 335440, 352212, 377370, 431280, 440265, 469616, 503160, 528318, 587020, 603792, 704424, 754740, 880530, 1006320, 1056636, 1174040, 1320795, 1408848, 1509480, 1761060, 2113272, 2348080, 2641590, 3018960, 3522120, 4226544, 5283180, 7044240, 10566360, 21132720]

約数ペア:

[(1, 21132720), (2, 10566360), (3, 7044240), (4, 5283180), (5, 4226544), (6, 3522120), (7, 3018960), (8, 2641590), (9, 2348080), (10, 2113272), (12, 1761060), (14, 1509480), (15, 1408848), (16, 1320795), (18, 1174040), (20, 1056636), (21, 1006320), (24, 880530), (28, 754740), (30, 704424), (35, 603792), (36, 587020), (40, 528318), (42, 503160), (45, 469616), (48, 440265), (49, 431280), (56, 377370), (60, 352212), (63, 335440), (70, 301896), (72, 293510), (80, 264159), (84, 251580), (90, 234808), (98, 215640), (105, 201264), (112, 188685), (120, 176106), (126, 167720), (140, 150948), (144, 146755), (147, 143760), (168, 125790), (180, 117404), (196, 107820), (210, 100632), (240, 88053), (245, 86256), (252, 83860), (280, 75474), (294, 71880), (315, 67088), (336, 62895), (360, 58702), (392, 53910), (420, 50316), (441, 47920), (490, 43128), (504, 41930), (560, 37737), (588, 35940), (599, 35280), (630, 33544), (720, 29351), (735, 28752), (784, 26955), (840, 25158), (882, 23960), (980, 21564), (1008, 20965), (1176, 17970), (1198, 17640), (1260, 16772), (1470, 14376), (1680, 12579), (1764, 11980), (1797, 11760), (1960, 10782), (2205, 9584), (2352, 8985), (2396, 8820), (2520, 8386), (2940, 7188), (2995, 7056), (3528, 5990), (3594, 5880), (3920, 5391), (4193, 5040), (4410, 4792)]