16720340

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{9187}}^1$

素因数の和:9216

約数の個数: 48

約数和(自身を含む): 43220352

約数和(自身を除く): 26500012

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 130, 140, 182, 260, 364, 455, 910, 1820, 9187, 18374, 36748, 45935, 64309, 91870, 119431, 128618, 183740, 238862, 257236, 321545, 477724, 597155, 643090, 836017, 1194310, 1286180, 1672034, 2388620, 3344068, 4180085, 8360170, 16720340]

約数ペア:

[(1, 16720340), (2, 8360170), (4, 4180085), (5, 3344068), (7, 2388620), (10, 1672034), (13, 1286180), (14, 1194310), (20, 836017), (26, 643090), (28, 597155), (35, 477724), (52, 321545), (65, 257236), (70, 238862), (91, 183740), (130, 128618), (140, 119431), (182, 91870), (260, 64309), (364, 45935), (455, 36748), (910, 18374), (1820, 9187)]