20803020

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{49531}}^1$

素因数の和:49550

約数の個数: 48

約数和(自身を含む): 66571008

約数和(自身を除く): 45767988

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 49531, 99062, 148593, 198124, 247655, 297186, 346717, 495310, 594372, 693434, 742965, 990620, 1040151, 1386868, 1485930, 1733585, 2080302, 2971860, 3467170, 4160604, 5200755, 6934340, 10401510, 20803020]

約数ペア:

[(1, 20803020), (2, 10401510), (3, 6934340), (4, 5200755), (5, 4160604), (6, 3467170), (7, 2971860), (10, 2080302), (12, 1733585), (14, 1485930), (15, 1386868), (20, 1040151), (21, 990620), (28, 742965), (30, 693434), (35, 594372), (42, 495310), (60, 346717), (70, 297186), (84, 247655), (105, 198124), (140, 148593), (210, 99062), (420, 49531)]