20160904

素因数分解:

$2^3\times {\mathrm{991}}^1\times {\mathrm{2543}}^1$

素因数の和:3540

約数の個数: 16

約数和(自身を含む): 37854720

約数和(自身を除く): 17693816

約数列:

[1, 2, 4, 8, 991, 1982, 2543, 3964, 5086, 7928, 10172, 20344, 2520113, 5040226, 10080452, 20160904]

約数ペア:

[(1, 20160904), (2, 10080452), (4, 5040226), (8, 2520113), (991, 20344), (1982, 10172), (2543, 7928), (3964, 5086)]