20216012320

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{2578573}}^1$

素因数の和:2578602

約数の個数: 72

約数和(自身を含む): 55557955404

約数和(自身を除く): 35341943084

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 70, 80, 98, 112, 140, 160, 196, 224, 245, 280, 392, 490, 560, 784, 980, 1120, 1568, 1960, 3920, 7840, 2578573, 5157146, 10314292, 12892865, 18050011, 20628584, 25785730, 36100022, 41257168, 51571460, 72200044, 82514336, 90250055, 103142920, 126350077, 144400088, 180500110, 206285840, 252700154, 288800176, 361000220, 412571680, 505400308, 577600352, 631750385, 722000440, 1010800616, 1263500770, 1444000880, 2021601232, 2527001540, 2888001760, 4043202464, 5054003080, 10108006160, 20216012320]

約数ペア:

[(1, 20216012320), (2, 10108006160), (4, 5054003080), (5, 4043202464), (7, 2888001760), (8, 2527001540), (10, 2021601232), (14, 1444000880), (16, 1263500770), (20, 1010800616), (28, 722000440), (32, 631750385), (35, 577600352), (40, 505400308), (49, 412571680), (56, 361000220), (70, 288800176), (80, 252700154), (98, 206285840), (112, 180500110), (140, 144400088), (160, 126350077), (196, 103142920), (224, 90250055), (245, 82514336), (280, 72200044), (392, 51571460), (490, 41257168), (560, 36100022), (784, 25785730), (980, 20628584), (1120, 18050011), (1568, 12892865), (1960, 10314292), (3920, 5157146), (7840, 2578573)]