2161170320

素因数分解:

$2^4\times 5^1\times {\mathrm{27014629}}^1$

素因数の和:27014642

約数の個数: 20

約数和(自身を含む): 5024721180

約数和(自身を除く): 2863550860

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 27014629, 54029258, 108058516, 135073145, 216117032, 270146290, 432234064, 540292580, 1080585160, 2161170320]

約数ペア:

[(1, 2161170320), (2, 1080585160), (4, 540292580), (5, 432234064), (8, 270146290), (10, 216117032), (16, 135073145), (20, 108058516), (40, 54029258), (80, 27014629)]