81706140

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{453923}}^1$

素因数の和:453938

約数の個数: 36

約数和(自身を含む): 247842504

約数和(自身を除く): 166136364

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 453923, 907846, 1361769, 1815692, 2269615, 2723538, 4085307, 4539230, 5447076, 6808845, 8170614, 9078460, 13617690, 16341228, 20426535, 27235380, 40853070, 81706140]

約数ペア:

[(1, 81706140), (2, 40853070), (3, 27235380), (4, 20426535), (5, 16341228), (6, 13617690), (9, 9078460), (10, 8170614), (12, 6808845), (15, 5447076), (18, 4539230), (20, 4085307), (30, 2723538), (36, 2269615), (45, 1815692), (60, 1361769), (90, 907846), (180, 453923)]