254145220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{1815323}}^1$

素因数の和:1815339

約数の個数: 24

約数和(自身を含む): 609948864

約数和(自身を除く): 355803644

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 1815323, 3630646, 7261292, 9076615, 12707261, 18153230, 25414522, 36306460, 50829044, 63536305, 127072610, 254145220]

約数ペア:

[(1, 254145220), (2, 127072610), (4, 63536305), (5, 50829044), (7, 36306460), (10, 25414522), (14, 18153230), (20, 12707261), (28, 9076615), (35, 7261292), (70, 3630646), (140, 1815323)]