20025720

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{389}}^1$

素因数の和:430

約数の個数: 192

約数和(自身を含む): 76658400

約数和(自身を除く): 56632680

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 13, 15, 18, 20, 22, 24, 26, 30, 33, 36, 39, 40, 44, 45, 52, 55, 60, 65, 66, 72, 78, 88, 90, 99, 104, 110, 117, 120, 130, 132, 143, 156, 165, 180, 195, 198, 220, 234, 260, 264, 286, 312, 330, 360, 389, 390, 396, 429, 440, 468, 495, 520, 572, 585, 660, 715, 778, 780, 792, 858, 936, 990, 1144, 1167, 1170, 1287, 1320, 1430, 1556, 1560, 1716, 1945, 1980, 2145, 2334, 2340, 2574, 2860, 3112, 3432, 3501, 3890, 3960, 4279, 4290, 4668, 4680, 5057, 5148, 5720, 5835, 6435, 7002, 7780, 8558, 8580, 9336, 10114, 10296, 11670, 12837, 12870, 14004, 15171, 15560, 17116, 17160, 17505, 20228, 21395, 23340, 25285, 25674, 25740, 28008, 30342, 34232, 35010, 38511, 40456, 42790, 45513, 46680, 50570, 51348, 51480, 55627, 60684, 64185, 70020, 75855, 77022, 85580, 91026, 101140, 102696, 111254, 121368, 128370, 140040, 151710, 154044, 166881, 171160, 182052, 192555, 202280, 222508, 227565, 256740, 278135, 303420, 308088, 333762, 364104, 385110, 445016, 455130, 500643, 513480, 556270, 606840, 667524, 770220, 834405, 910260, 1001286, 1112540, 1335048, 1540440, 1668810, 1820520, 2002572, 2225080, 2503215, 3337620, 4005144, 5006430, 6675240, 10012860, 20025720]

約数ペア:

[(1, 20025720), (2, 10012860), (3, 6675240), (4, 5006430), (5, 4005144), (6, 3337620), (8, 2503215), (9, 2225080), (10, 2002572), (11, 1820520), (12, 1668810), (13, 1540440), (15, 1335048), (18, 1112540), (20, 1001286), (22, 910260), (24, 834405), (26, 770220), (30, 667524), (33, 606840), (36, 556270), (39, 513480), (40, 500643), (44, 455130), (45, 445016), (52, 385110), (55, 364104), (60, 333762), (65, 308088), (66, 303420), (72, 278135), (78, 256740), (88, 227565), (90, 222508), (99, 202280), (104, 192555), (110, 182052), (117, 171160), (120, 166881), (130, 154044), (132, 151710), (143, 140040), (156, 128370), (165, 121368), (180, 111254), (195, 102696), (198, 101140), (220, 91026), (234, 85580), (260, 77022), (264, 75855), (286, 70020), (312, 64185), (330, 60684), (360, 55627), (389, 51480), (390, 51348), (396, 50570), (429, 46680), (440, 45513), (468, 42790), (495, 40456), (520, 38511), (572, 35010), (585, 34232), (660, 30342), (715, 28008), (778, 25740), (780, 25674), (792, 25285), (858, 23340), (936, 21395), (990, 20228), (1144, 17505), (1167, 17160), (1170, 17116), (1287, 15560), (1320, 15171), (1430, 14004), (1556, 12870), (1560, 12837), (1716, 11670), (1945, 10296), (1980, 10114), (2145, 9336), (2334, 8580), (2340, 8558), (2574, 7780), (2860, 7002), (3112, 6435), (3432, 5835), (3501, 5720), (3890, 5148), (3960, 5057), (4279, 4680), (4290, 4668)]