13091840

素因数分解:

$2^{10}\times 5^1\times {\mathrm{2557}}^1$

素因数の和:2582

約数の個数: 44

約数和(自身を含む): 31417356

約数和(自身を除く): 18325516

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1024, 1280, 2557, 2560, 5114, 5120, 10228, 12785, 20456, 25570, 40912, 51140, 81824, 102280, 163648, 204560, 327296, 409120, 654592, 818240, 1309184, 1636480, 2618368, 3272960, 6545920, 13091840]

約数ペア:

[(1, 13091840), (2, 6545920), (4, 3272960), (5, 2618368), (8, 1636480), (10, 1309184), (16, 818240), (20, 654592), (32, 409120), (40, 327296), (64, 204560), (80, 163648), (128, 102280), (160, 81824), (256, 51140), (320, 40912), (512, 25570), (640, 20456), (1024, 12785), (1280, 10228), (2557, 5120), (2560, 5114)]