20472760

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^2\times {\mathrm{23}}^1$

素因数の和:86

約数の個数: 192

約数和(自身を含む): 63659520

約数和(自身を除く): 43186760

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 17, 20, 22, 23, 28, 34, 35, 40, 44, 46, 55, 56, 68, 70, 77, 85, 88, 92, 110, 115, 119, 136, 140, 154, 161, 170, 184, 187, 220, 230, 238, 253, 280, 289, 308, 322, 340, 374, 385, 391, 440, 460, 476, 506, 578, 595, 616, 644, 680, 748, 770, 782, 805, 920, 935, 952, 1012, 1156, 1190, 1265, 1288, 1309, 1445, 1496, 1540, 1564, 1610, 1771, 1870, 1955, 2023, 2024, 2312, 2380, 2530, 2618, 2737, 2890, 3080, 3128, 3179, 3220, 3542, 3740, 3910, 4046, 4301, 4760, 5060, 5236, 5474, 5780, 6358, 6440, 6545, 6647, 7084, 7480, 7820, 8092, 8602, 8855, 10115, 10120, 10472, 10948, 11560, 12716, 13090, 13294, 13685, 14168, 15640, 15895, 16184, 17204, 17710, 20230, 21505, 21896, 22253, 25432, 26180, 26588, 27370, 30107, 31790, 33235, 34408, 35420, 40460, 43010, 44506, 46529, 52360, 53176, 54740, 60214, 63580, 66470, 70840, 73117, 80920, 86020, 89012, 93058, 109480, 111265, 120428, 127160, 132940, 146234, 150535, 172040, 178024, 186116, 222530, 232645, 240856, 265880, 292468, 301070, 365585, 372232, 445060, 465290, 511819, 584936, 602140, 731170, 890120, 930580, 1023638, 1204280, 1462340, 1861160, 2047276, 2559095, 2924680, 4094552, 5118190, 10236380, 20472760]

約数ペア:

[(1, 20472760), (2, 10236380), (4, 5118190), (5, 4094552), (7, 2924680), (8, 2559095), (10, 2047276), (11, 1861160), (14, 1462340), (17, 1204280), (20, 1023638), (22, 930580), (23, 890120), (28, 731170), (34, 602140), (35, 584936), (40, 511819), (44, 465290), (46, 445060), (55, 372232), (56, 365585), (68, 301070), (70, 292468), (77, 265880), (85, 240856), (88, 232645), (92, 222530), (110, 186116), (115, 178024), (119, 172040), (136, 150535), (140, 146234), (154, 132940), (161, 127160), (170, 120428), (184, 111265), (187, 109480), (220, 93058), (230, 89012), (238, 86020), (253, 80920), (280, 73117), (289, 70840), (308, 66470), (322, 63580), (340, 60214), (374, 54740), (385, 53176), (391, 52360), (440, 46529), (460, 44506), (476, 43010), (506, 40460), (578, 35420), (595, 34408), (616, 33235), (644, 31790), (680, 30107), (748, 27370), (770, 26588), (782, 26180), (805, 25432), (920, 22253), (935, 21896), (952, 21505), (1012, 20230), (1156, 17710), (1190, 17204), (1265, 16184), (1288, 15895), (1309, 15640), (1445, 14168), (1496, 13685), (1540, 13294), (1564, 13090), (1610, 12716), (1771, 11560), (1870, 10948), (1955, 10472), (2023, 10120), (2024, 10115), (2312, 8855), (2380, 8602), (2530, 8092), (2618, 7820), (2737, 7480), (2890, 7084), (3080, 6647), (3128, 6545), (3179, 6440), (3220, 6358), (3542, 5780), (3740, 5474), (3910, 5236), (4046, 5060), (4301, 4760)]