18918969090

素因数分解:

$2^1\times 3^1\times 5^1\times 7^2\times {\mathrm{12870047}}^1$

素因数の和:12870071

約数の個数: 48

約数和(自身を含む): 52818676992

約数和(自身を除く): 33899707902

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 49, 70, 98, 105, 147, 210, 245, 294, 490, 735, 1470, 12870047, 25740094, 38610141, 64350235, 77220282, 90090329, 128700470, 180180658, 193050705, 270270987, 386101410, 450451645, 540541974, 630632303, 900903290, 1261264606, 1351354935, 1891896909, 2702709870, 3153161515, 3783793818, 6306323030, 9459484545, 18918969090]

約数ペア:

[(1, 18918969090), (2, 9459484545), (3, 6306323030), (5, 3783793818), (6, 3153161515), (7, 2702709870), (10, 1891896909), (14, 1351354935), (15, 1261264606), (21, 900903290), (30, 630632303), (35, 540541974), (42, 450451645), (49, 386101410), (70, 270270987), (98, 193050705), (105, 180180658), (147, 128700470), (210, 90090329), (245, 77220282), (294, 64350235), (490, 38610141), (735, 25740094), (1470, 12870047)]