204792420

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{487601}}^1$

素因数の和:487620

約数の個数: 48

約数和(自身を含む): 655337088

約数和(自身を除く): 450544668

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, 487601, 975202, 1462803, 1950404, 2438005, 2925606, 3413207, 4876010, 5851212, 6826414, 7314015, 9752020, 10239621, 13652828, 14628030, 17066035, 20479242, 29256060, 34132070, 40958484, 51198105, 68264140, 102396210, 204792420]

約数ペア:

[(1, 204792420), (2, 102396210), (3, 68264140), (4, 51198105), (5, 40958484), (6, 34132070), (7, 29256060), (10, 20479242), (12, 17066035), (14, 14628030), (15, 13652828), (20, 10239621), (21, 9752020), (28, 7314015), (30, 6826414), (35, 5851212), (42, 4876010), (60, 3413207), (70, 2925606), (84, 2438005), (105, 1950404), (140, 1462803), (210, 975202), (420, 487601)]