16628540

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{977}}^1$

素因数の和:1046

約数の個数: 48

約数和(自身を含む): 37461312

約数和(自身を除く): 20832772

約数列:

[1, 2, 4, 5, 10, 20, 23, 37, 46, 74, 92, 115, 148, 185, 230, 370, 460, 740, 851, 977, 1702, 1954, 3404, 3908, 4255, 4885, 8510, 9770, 17020, 19540, 22471, 36149, 44942, 72298, 89884, 112355, 144596, 180745, 224710, 361490, 449420, 722980, 831427, 1662854, 3325708, 4157135, 8314270, 16628540]

約数ペア:

[(1, 16628540), (2, 8314270), (4, 4157135), (5, 3325708), (10, 1662854), (20, 831427), (23, 722980), (37, 449420), (46, 361490), (74, 224710), (92, 180745), (115, 144596), (148, 112355), (185, 89884), (230, 72298), (370, 44942), (460, 36149), (740, 22471), (851, 19540), (977, 17020), (1702, 9770), (1954, 8510), (3404, 4885), (3908, 4255)]