642016076

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{398273}}^1$

素因数の和:398321

約数の個数: 24

約数和(自身を含む): 1248987264

約数和(自身を除く): 606971188

約数列:

[1, 2, 4, 13, 26, 31, 52, 62, 124, 403, 806, 1612, 398273, 796546, 1593092, 5177549, 10355098, 12346463, 20710196, 24692926, 49385852, 160504019, 321008038, 642016076]

約数ペア:

[(1, 642016076), (2, 321008038), (4, 160504019), (13, 49385852), (26, 24692926), (31, 20710196), (52, 12346463), (62, 10355098), (124, 5177549), (403, 1593092), (806, 796546), (1612, 398273)]