1723240

素因数分解:

$2^3\times 5^1\times {\mathrm{67}}^1\times {\mathrm{643}}^1$

素因数の和:721

約数の個数: 32

約数和(自身を含む): 3941280

約数和(自身を除く): 2218040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 67, 134, 268, 335, 536, 643, 670, 1286, 1340, 2572, 2680, 3215, 5144, 6430, 12860, 25720, 43081, 86162, 172324, 215405, 344648, 430810, 861620, 1723240]

約数ペア:

[(1, 1723240), (2, 861620), (4, 430810), (5, 344648), (8, 215405), (10, 172324), (20, 86162), (40, 43081), (67, 25720), (134, 12860), (268, 6430), (335, 5144), (536, 3215), (643, 2680), (670, 2572), (1286, 1340)]