18672720

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{643}}^1$

素因数の和:681

約数の個数: 120

約数和(自身を含む): 63725088

約数和(自身を除く): 45052368

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 16, 20, 22, 24, 30, 33, 40, 44, 48, 55, 60, 66, 80, 88, 110, 120, 121, 132, 165, 176, 220, 240, 242, 264, 330, 363, 440, 484, 528, 605, 643, 660, 726, 880, 968, 1210, 1286, 1320, 1452, 1815, 1929, 1936, 2420, 2572, 2640, 2904, 3215, 3630, 3858, 4840, 5144, 5808, 6430, 7073, 7260, 7716, 9645, 9680, 10288, 12860, 14146, 14520, 15432, 19290, 21219, 25720, 28292, 29040, 30864, 35365, 38580, 42438, 51440, 56584, 70730, 77160, 77803, 84876, 106095, 113168, 141460, 154320, 155606, 169752, 212190, 233409, 282920, 311212, 339504, 389015, 424380, 466818, 565840, 622424, 778030, 848760, 933636, 1167045, 1244848, 1556060, 1697520, 1867272, 2334090, 3112120, 3734544, 4668180, 6224240, 9336360, 18672720]

約数ペア:

[(1, 18672720), (2, 9336360), (3, 6224240), (4, 4668180), (5, 3734544), (6, 3112120), (8, 2334090), (10, 1867272), (11, 1697520), (12, 1556060), (15, 1244848), (16, 1167045), (20, 933636), (22, 848760), (24, 778030), (30, 622424), (33, 565840), (40, 466818), (44, 424380), (48, 389015), (55, 339504), (60, 311212), (66, 282920), (80, 233409), (88, 212190), (110, 169752), (120, 155606), (121, 154320), (132, 141460), (165, 113168), (176, 106095), (220, 84876), (240, 77803), (242, 77160), (264, 70730), (330, 56584), (363, 51440), (440, 42438), (484, 38580), (528, 35365), (605, 30864), (643, 29040), (660, 28292), (726, 25720), (880, 21219), (968, 19290), (1210, 15432), (1286, 14520), (1320, 14146), (1452, 12860), (1815, 10288), (1929, 9680), (1936, 9645), (2420, 7716), (2572, 7260), (2640, 7073), (2904, 6430), (3215, 5808), (3630, 5144), (3858, 4840)]