13581440

素因数分解:

$2^7\times 5^1\times {\mathrm{21221}}^1$

素因数の和:21240

約数の個数: 32

約数和(自身を含む): 32469660

約数和(自身を除く): 18888220

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 21221, 42442, 84884, 106105, 169768, 212210, 339536, 424420, 679072, 848840, 1358144, 1697680, 2716288, 3395360, 6790720, 13581440]

約数ペア:

[(1, 13581440), (2, 6790720), (4, 3395360), (5, 2716288), (8, 1697680), (10, 1358144), (16, 848840), (20, 679072), (32, 424420), (40, 339536), (64, 212210), (80, 169768), (128, 106105), (160, 84884), (320, 42442), (640, 21221)]