247790620

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{160903}}^1$

素因数の和:160930

約数の個数: 48

約数和(自身を含む): 648764928

約数和(自身を除く): 400974308

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, 160903, 321806, 643612, 804515, 1126321, 1609030, 1769933, 2252642, 3218060, 3539866, 4505284, 5631605, 7079732, 8849665, 11263210, 12389531, 17699330, 22526420, 24779062, 35398660, 49558124, 61947655, 123895310, 247790620]

約数ペア:

[(1, 247790620), (2, 123895310), (4, 61947655), (5, 49558124), (7, 35398660), (10, 24779062), (11, 22526420), (14, 17699330), (20, 12389531), (22, 11263210), (28, 8849665), (35, 7079732), (44, 5631605), (55, 4505284), (70, 3539866), (77, 3218060), (110, 2252642), (140, 1769933), (154, 1609030), (220, 1126321), (308, 804515), (385, 643612), (770, 321806), (1540, 160903)]