28625920

素因数分解:

$2^{10}\times 5^1\times {\mathrm{5591}}^1$

素因数の和:5616

約数の個数: 44

約数和(自身を含む): 68680944

約数和(自身を除く): 40055024

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1024, 1280, 2560, 5120, 5591, 11182, 22364, 27955, 44728, 55910, 89456, 111820, 178912, 223640, 357824, 447280, 715648, 894560, 1431296, 1789120, 2862592, 3578240, 5725184, 7156480, 14312960, 28625920]

約数ペア:

[(1, 28625920), (2, 14312960), (4, 7156480), (5, 5725184), (8, 3578240), (10, 2862592), (16, 1789120), (20, 1431296), (32, 894560), (40, 715648), (64, 447280), (80, 357824), (128, 223640), (160, 178912), (256, 111820), (320, 89456), (512, 55910), (640, 44728), (1024, 27955), (1280, 22364), (2560, 11182), (5120, 5591)]