208021520

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{21851}}^1$

素因数の和:21888

約数の個数: 80

約数和(自身を含む): 585283968

約数和(自身を除く): 377262448

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 17, 20, 28, 34, 35, 40, 56, 68, 70, 80, 85, 112, 119, 136, 140, 170, 238, 272, 280, 340, 476, 560, 595, 680, 952, 1190, 1360, 1904, 2380, 4760, 9520, 21851, 43702, 87404, 109255, 152957, 174808, 218510, 305914, 349616, 371467, 437020, 611828, 742934, 764785, 874040, 1223656, 1485868, 1529570, 1748080, 1857335, 2447312, 2600269, 2971736, 3059140, 3714670, 5200538, 5943472, 6118280, 7429340, 10401076, 12236560, 13001345, 14858680, 20802152, 26002690, 29717360, 41604304, 52005380, 104010760, 208021520]

約数ペア:

[(1, 208021520), (2, 104010760), (4, 52005380), (5, 41604304), (7, 29717360), (8, 26002690), (10, 20802152), (14, 14858680), (16, 13001345), (17, 12236560), (20, 10401076), (28, 7429340), (34, 6118280), (35, 5943472), (40, 5200538), (56, 3714670), (68, 3059140), (70, 2971736), (80, 2600269), (85, 2447312), (112, 1857335), (119, 1748080), (136, 1529570), (140, 1485868), (170, 1223656), (238, 874040), (272, 764785), (280, 742934), (340, 611828), (476, 437020), (560, 371467), (595, 349616), (680, 305914), (952, 218510), (1190, 174808), (1360, 152957), (1904, 109255), (2380, 87404), (4760, 43702), (9520, 21851)]