81470620

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{52903}}^1$

素因数の和:52930

約数の個数: 48

約数和(自身を含む): 213308928

約数和(自身を除く): 131838308

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 140, 154, 220, 308, 385, 770, 1540, 52903, 105806, 211612, 264515, 370321, 529030, 581933, 740642, 1058060, 1163866, 1481284, 1851605, 2327732, 2909665, 3703210, 4073531, 5819330, 7406420, 8147062, 11638660, 16294124, 20367655, 40735310, 81470620]

約数ペア:

[(1, 81470620), (2, 40735310), (4, 20367655), (5, 16294124), (7, 11638660), (10, 8147062), (11, 7406420), (14, 5819330), (20, 4073531), (22, 3703210), (28, 2909665), (35, 2327732), (44, 1851605), (55, 1481284), (70, 1163866), (77, 1058060), (110, 740642), (140, 581933), (154, 529030), (220, 370321), (308, 264515), (385, 211612), (770, 105806), (1540, 52903)]