20246660

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{181}}^1$

素因数の和:261

約数の個数: 96

約数和(自身を含む): 52835328

約数和(自身を除く): 32588668

約数列:

[1, 2, 4, 5, 7, 10, 14, 17, 20, 28, 34, 35, 47, 68, 70, 85, 94, 119, 140, 170, 181, 188, 235, 238, 329, 340, 362, 470, 476, 595, 658, 724, 799, 905, 940, 1190, 1267, 1316, 1598, 1645, 1810, 2380, 2534, 3077, 3196, 3290, 3620, 3995, 5068, 5593, 6154, 6335, 6580, 7990, 8507, 11186, 12308, 12670, 15385, 15980, 17014, 21539, 22372, 25340, 27965, 30770, 34028, 42535, 43078, 55930, 59549, 61540, 85070, 86156, 107695, 111860, 119098, 144619, 170140, 215390, 238196, 289238, 297745, 430780, 578476, 595490, 723095, 1012333, 1190980, 1446190, 2024666, 2892380, 4049332, 5061665, 10123330, 20246660]

約数ペア:

[(1, 20246660), (2, 10123330), (4, 5061665), (5, 4049332), (7, 2892380), (10, 2024666), (14, 1446190), (17, 1190980), (20, 1012333), (28, 723095), (34, 595490), (35, 578476), (47, 430780), (68, 297745), (70, 289238), (85, 238196), (94, 215390), (119, 170140), (140, 144619), (170, 119098), (181, 111860), (188, 107695), (235, 86156), (238, 85070), (329, 61540), (340, 59549), (362, 55930), (470, 43078), (476, 42535), (595, 34028), (658, 30770), (724, 27965), (799, 25340), (905, 22372), (940, 21539), (1190, 17014), (1267, 15980), (1316, 15385), (1598, 12670), (1645, 12308), (1810, 11186), (2380, 8507), (2534, 7990), (3077, 6580), (3196, 6335), (3290, 6154), (3620, 5593), (3995, 5068)]