208026420

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{495301}}^1$

素因数の和:495320

約数の個数: 48

約数和(自身を含む): 665685888

約数和(自身を除く): 457659468

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, 495301, 990602, 1485903, 1981204, 2476505, 2971806, 3467107, 4953010, 5943612, 6934214, 7429515, 9906020, 10401321, 13868428, 14859030, 17335535, 20802642, 29718060, 34671070, 41605284, 52006605, 69342140, 104013210, 208026420]

約数ペア:

[(1, 208026420), (2, 104013210), (3, 69342140), (4, 52006605), (5, 41605284), (6, 34671070), (7, 29718060), (10, 20802642), (12, 17335535), (14, 14859030), (15, 13868428), (20, 10401321), (21, 9906020), (28, 7429515), (30, 6934214), (35, 5943612), (42, 4953010), (60, 3467107), (70, 2971806), (84, 2476505), (105, 1981204), (140, 1485903), (210, 990602), (420, 495301)]