17981450

素因数分解:

$2^1\times 5^2\times {\mathrm{29}}^1\times {\mathrm{12401}}^1$

素因数の和:12442

約数の個数: 24

約数和(自身を含む): 34601580

約数和(自身を除く): 16620130

約数列:

[1, 2, 5, 10, 25, 29, 50, 58, 145, 290, 725, 1450, 12401, 24802, 62005, 124010, 310025, 359629, 620050, 719258, 1798145, 3596290, 8990725, 17981450]

約数ペア:

[(1, 17981450), (2, 8990725), (5, 3596290), (10, 1798145), (25, 719258), (29, 620050), (50, 359629), (58, 310025), (145, 124010), (290, 62005), (725, 24802), (1450, 12401)]