18987850

素因数分解:

$2^1\times 5^2\times 7^1\times {\mathrm{54251}}^1$

素因数の和:54270

約数の個数: 24

約数和(自身を含む): 40363488

約数和(自身を除く): 21375638

約数列:

[1, 2, 5, 7, 10, 14, 25, 35, 50, 70, 175, 350, 54251, 108502, 271255, 379757, 542510, 759514, 1356275, 1898785, 2712550, 3797570, 9493925, 18987850]

約数ペア:

[(1, 18987850), (2, 9493925), (5, 3797570), (7, 2712550), (10, 1898785), (14, 1356275), (25, 759514), (35, 542510), (50, 379757), (70, 271255), (175, 108502), (350, 54251)]