81378420

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{1109}}^1\times {\mathrm{1223}}^1$

素因数の和:2344

約数の個数: 48

約数和(自身を含む): 228251520

約数和(自身を除く): 146873100

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 1109, 1223, 2218, 2446, 3327, 3669, 4436, 4892, 5545, 6115, 6654, 7338, 11090, 12230, 13308, 14676, 16635, 18345, 22180, 24460, 33270, 36690, 66540, 73380, 1356307, 2712614, 4068921, 5425228, 6781535, 8137842, 13563070, 16275684, 20344605, 27126140, 40689210, 81378420]

約数ペア:

[(1, 81378420), (2, 40689210), (3, 27126140), (4, 20344605), (5, 16275684), (6, 13563070), (10, 8137842), (12, 6781535), (15, 5425228), (20, 4068921), (30, 2712614), (60, 1356307), (1109, 73380), (1223, 66540), (2218, 36690), (2446, 33270), (3327, 24460), (3669, 22180), (4436, 18345), (4892, 16635), (5545, 14676), (6115, 13308), (6654, 12230), (7338, 11090)]