389585920

素因数分解:

$2^{10}\times 5^1\times {\mathrm{76091}}^1$

素因数の和:76116

約数の個数: 44

約数和(自身を含む): 934561944

約数和(自身を除く): 544976024

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, 76091, 152182, 304364, 380455, 608728, 760910, 1217456, 1521820, 2434912, 3043640, 4869824, 6087280, 9739648, 12174560, 19479296, 24349120, 38958592, 48698240, 77917184, 97396480, 194792960, 389585920]

約数ペア:

[(1, 389585920), (2, 194792960), (4, 97396480), (5, 77917184), (8, 48698240), (10, 38958592), (16, 24349120), (20, 19479296), (32, 12174560), (40, 9739648), (64, 6087280), (80, 4869824), (128, 3043640), (160, 2434912), (256, 1521820), (320, 1217456), (512, 760910), (640, 608728), (1024, 380455), (1280, 304364), (2560, 152182), (5120, 76091)]