87081680

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{6761}}^1$

素因数の和:6804

約数の個数: 80

約数和(自身を含む): 241484544

約数和(自身を除く): 154402864

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 23, 28, 35, 40, 46, 56, 70, 80, 92, 112, 115, 140, 161, 184, 230, 280, 322, 368, 460, 560, 644, 805, 920, 1288, 1610, 1840, 2576, 3220, 6440, 6761, 12880, 13522, 27044, 33805, 47327, 54088, 67610, 94654, 108176, 135220, 155503, 189308, 236635, 270440, 311006, 378616, 473270, 540880, 622012, 757232, 777515, 946540, 1088521, 1244024, 1555030, 1893080, 2177042, 2488048, 3110060, 3786160, 4354084, 5442605, 6220120, 8708168, 10885210, 12440240, 17416336, 21770420, 43540840, 87081680]

約数ペア:

[(1, 87081680), (2, 43540840), (4, 21770420), (5, 17416336), (7, 12440240), (8, 10885210), (10, 8708168), (14, 6220120), (16, 5442605), (20, 4354084), (23, 3786160), (28, 3110060), (35, 2488048), (40, 2177042), (46, 1893080), (56, 1555030), (70, 1244024), (80, 1088521), (92, 946540), (112, 777515), (115, 757232), (140, 622012), (161, 540880), (184, 473270), (230, 378616), (280, 311006), (322, 270440), (368, 236635), (460, 189308), (560, 155503), (644, 135220), (805, 108176), (920, 94654), (1288, 67610), (1610, 54088), (1840, 47327), (2576, 33805), (3220, 27044), (6440, 13522), (6761, 12880)]