71212120

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{254329}}^1$

素因数の和:254347

約数の個数: 32

約数和(自身を含む): 183117600

約数和(自身を除く): 111905480

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 254329, 508658, 1017316, 1271645, 1780303, 2034632, 2543290, 3560606, 5086580, 7121212, 8901515, 10173160, 14242424, 17803030, 35606060, 71212120]

約数ペア:

[(1, 71212120), (2, 35606060), (4, 17803030), (5, 14242424), (7, 10173160), (8, 8901515), (10, 7121212), (14, 5086580), (20, 3560606), (28, 2543290), (35, 2034632), (40, 1780303), (56, 1271645), (70, 1017316), (140, 508658), (280, 254329)]