20155620

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{5507}}^1$

素因数の和:5580

約数の個数: 48

約数和(自身を含む): 57371328

約数和(自身を除く): 37215708

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 61, 122, 183, 244, 305, 366, 610, 732, 915, 1220, 1830, 3660, 5507, 11014, 16521, 22028, 27535, 33042, 55070, 66084, 82605, 110140, 165210, 330420, 335927, 671854, 1007781, 1343708, 1679635, 2015562, 3359270, 4031124, 5038905, 6718540, 10077810, 20155620]

約数ペア:

[(1, 20155620), (2, 10077810), (3, 6718540), (4, 5038905), (5, 4031124), (6, 3359270), (10, 2015562), (12, 1679635), (15, 1343708), (20, 1007781), (30, 671854), (60, 335927), (61, 330420), (122, 165210), (183, 110140), (244, 82605), (305, 66084), (366, 55070), (610, 33042), (732, 27535), (915, 22028), (1220, 16521), (1830, 11014), (3660, 5507)]