18685020

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{239}}^1\times {\mathrm{1303}}^1$

素因数の和:1554

約数の個数: 48

約数和(自身を含む): 52577280

約数和(自身を除く): 33892260

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 239, 478, 717, 956, 1195, 1303, 1434, 2390, 2606, 2868, 3585, 3909, 4780, 5212, 6515, 7170, 7818, 13030, 14340, 15636, 19545, 26060, 39090, 78180, 311417, 622834, 934251, 1245668, 1557085, 1868502, 3114170, 3737004, 4671255, 6228340, 9342510, 18685020]

約数ペア:

[(1, 18685020), (2, 9342510), (3, 6228340), (4, 4671255), (5, 3737004), (6, 3114170), (10, 1868502), (12, 1557085), (15, 1245668), (20, 934251), (30, 622834), (60, 311417), (239, 78180), (478, 39090), (717, 26060), (956, 19545), (1195, 15636), (1303, 14340), (1434, 13030), (2390, 7818), (2606, 7170), (2868, 6515), (3585, 5212), (3909, 4780)]