1639580

素因数分解:

$2^2\times 5^1\times {\mathrm{73}}^1\times {\mathrm{1123}}^1$

素因数の和:1205

約数の個数: 24

約数和(自身を含む): 3493392

約数和(自身を除く): 1853812

約数列:

[1, 2, 4, 5, 10, 20, 73, 146, 292, 365, 730, 1123, 1460, 2246, 4492, 5615, 11230, 22460, 81979, 163958, 327916, 409895, 819790, 1639580]

約数ペア:

[(1, 1639580), (2, 819790), (4, 409895), (5, 327916), (10, 163958), (20, 81979), (73, 22460), (146, 11230), (292, 5615), (365, 4492), (730, 2246), (1123, 1460)]