274278620

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{178103}}^1$

素因数の和:178130

約数の個数: 48

約数和(自身を含む): 718115328

約数和(自身を除く): 443836708

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, 178103, 356206, 712412, 890515, 1246721, 1781030, 1959133, 2493442, 3562060, 3918266, 4986884, 6233605, 7836532, 9795665, 12467210, 13713931, 19591330, 24934420, 27427862, 39182660, 54855724, 68569655, 137139310, 274278620]

約数ペア:

[(1, 274278620), (2, 137139310), (4, 68569655), (5, 54855724), (7, 39182660), (10, 27427862), (11, 24934420), (14, 19591330), (20, 13713931), (22, 12467210), (28, 9795665), (35, 7836532), (44, 6233605), (55, 4986884), (70, 3918266), (77, 3562060), (110, 2493442), (140, 1959133), (154, 1781030), (220, 1246721), (308, 890515), (385, 712412), (770, 356206), (1540, 178103)]