207858840

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{247451}}^1$

素因数の和:247472

約数の個数: 64

約数和(自身を含む): 712661760

約数和(自身を除く): 504802920

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840, 247451, 494902, 742353, 989804, 1237255, 1484706, 1732157, 1979608, 2474510, 2969412, 3464314, 3711765, 4949020, 5196471, 5938824, 6928628, 7423530, 8660785, 9898040, 10392942, 13857256, 14847060, 17321570, 20785884, 25982355, 29694120, 34643140, 41571768, 51964710, 69286280, 103929420, 207858840]

約数ペア:

[(1, 207858840), (2, 103929420), (3, 69286280), (4, 51964710), (5, 41571768), (6, 34643140), (7, 29694120), (8, 25982355), (10, 20785884), (12, 17321570), (14, 14847060), (15, 13857256), (20, 10392942), (21, 9898040), (24, 8660785), (28, 7423530), (30, 6928628), (35, 5938824), (40, 5196471), (42, 4949020), (56, 3711765), (60, 3464314), (70, 2969412), (84, 2474510), (105, 1979608), (120, 1732157), (140, 1484706), (168, 1237255), (210, 989804), (280, 742353), (420, 494902), (840, 247451)]