980408

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{857}}^1$

素因数の和:887

約数の個数: 32

約数和(自身を含む): 2162160

約数和(自身を除く): 1181752

約数列:

[1, 2, 4, 8, 11, 13, 22, 26, 44, 52, 88, 104, 143, 286, 572, 857, 1144, 1714, 3428, 6856, 9427, 11141, 18854, 22282, 37708, 44564, 75416, 89128, 122551, 245102, 490204, 980408]

約数ペア:

[(1, 980408), (2, 490204), (4, 245102), (8, 122551), (11, 89128), (13, 75416), (22, 44564), (26, 37708), (44, 22282), (52, 18854), (88, 11141), (104, 9427), (143, 6856), (286, 3428), (572, 1714), (857, 1144)]