18729590

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{23}}^1\times {\mathrm{673}}^1$

素因数の和:725

約数の個数: 48

約数和(自身を含む): 38725344

約数和(自身を除く): 19995754

約数列:

[1, 2, 5, 10, 11, 22, 23, 46, 55, 110, 115, 121, 230, 242, 253, 506, 605, 673, 1210, 1265, 1346, 2530, 2783, 3365, 5566, 6730, 7403, 13915, 14806, 15479, 27830, 30958, 37015, 74030, 77395, 81433, 154790, 162866, 170269, 340538, 407165, 814330, 851345, 1702690, 1872959, 3745918, 9364795, 18729590]

約数ペア:

[(1, 18729590), (2, 9364795), (5, 3745918), (10, 1872959), (11, 1702690), (22, 851345), (23, 814330), (46, 407165), (55, 340538), (110, 170269), (115, 162866), (121, 154790), (230, 81433), (242, 77395), (253, 74030), (506, 37015), (605, 30958), (673, 27830), (1210, 15479), (1265, 14806), (1346, 13915), (2530, 7403), (2783, 6730), (3365, 5566)]