18525475

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{907}}^1$

素因数の和:979

約数の個数: 24

約数和(自身を含む): 24770240

約数和(自身を除く): 6244765

約数列:

[1, 5, 19, 25, 43, 95, 215, 475, 817, 907, 1075, 4085, 4535, 17233, 20425, 22675, 39001, 86165, 195005, 430825, 741019, 975025, 3705095, 18525475]

約数ペア:

[(1, 18525475), (5, 3705095), (19, 975025), (25, 741019), (43, 430825), (95, 195005), (215, 86165), (475, 39001), (817, 22675), (907, 20425), (1075, 17233), (4085, 4535)]