251188280

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{897101}}^1$

素因数の和:897119

約数の個数: 32

約数和(自身を含む): 645913440

約数和(自身を除く): 394725160

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 897101, 1794202, 3588404, 4485505, 6279707, 7176808, 8971010, 12559414, 17942020, 25118828, 31398535, 35884040, 50237656, 62797070, 125594140, 251188280]

約数ペア:

[(1, 251188280), (2, 125594140), (4, 62797070), (5, 50237656), (7, 35884040), (8, 31398535), (10, 25118828), (14, 17942020), (20, 12559414), (28, 8971010), (35, 7176808), (40, 6279707), (56, 4485505), (70, 3588404), (140, 1794202), (280, 897101)]