1645676884

素因数分解:

$2^2\times {\mathrm{257}}^2\times {\mathrm{6229}}^1$

素因数の和:6747

約数の個数: 18

約数和(自身を含む): 2891648270

約数和(自身を除く): 1245971386

約数列:

[1, 2, 4, 257, 514, 1028, 6229, 12458, 24916, 66049, 132098, 264196, 1600853, 3201706, 6403412, 411419221, 822838442, 1645676884]

約数ペア:

[(1, 1645676884), (2, 822838442), (4, 411419221), (257, 6403412), (514, 3201706), (1028, 1600853), (6229, 264196), (12458, 132098), (24916, 66049)]