4387840

素因数分解:

$2^{10}\times 5^1\times {\mathrm{857}}^1$

素因数の和:882

約数の個数: 44

約数和(自身を含む): 10537956

約数和(自身を除く): 6150116

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 857, 1024, 1280, 1714, 2560, 3428, 4285, 5120, 6856, 8570, 13712, 17140, 27424, 34280, 54848, 68560, 109696, 137120, 219392, 274240, 438784, 548480, 877568, 1096960, 2193920, 4387840]

約数ペア:

[(1, 4387840), (2, 2193920), (4, 1096960), (5, 877568), (8, 548480), (10, 438784), (16, 274240), (20, 219392), (32, 137120), (40, 109696), (64, 68560), (80, 54848), (128, 34280), (160, 27424), (256, 17140), (320, 13712), (512, 8570), (640, 6856), (857, 5120), (1024, 4285), (1280, 3428), (1714, 2560)]