18959360

素因数分解:

$2^{10}\times 5^1\times 7^1\times {\mathrm{23}}^2$

素因数の和:78

約数の個数: 132

約数和(自身を含む): 54335568

約数和(自身を除く): 35376208

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 23, 28, 32, 35, 40, 46, 56, 64, 70, 80, 92, 112, 115, 128, 140, 160, 161, 184, 224, 230, 256, 280, 320, 322, 368, 448, 460, 512, 529, 560, 640, 644, 736, 805, 896, 920, 1024, 1058, 1120, 1280, 1288, 1472, 1610, 1792, 1840, 2116, 2240, 2560, 2576, 2645, 2944, 3220, 3584, 3680, 3703, 4232, 4480, 5120, 5152, 5290, 5888, 6440, 7168, 7360, 7406, 8464, 8960, 10304, 10580, 11776, 12880, 14720, 14812, 16928, 17920, 18515, 20608, 21160, 23552, 25760, 29440, 29624, 33856, 35840, 37030, 41216, 42320, 51520, 58880, 59248, 67712, 74060, 82432, 84640, 103040, 117760, 118496, 135424, 148120, 164864, 169280, 206080, 236992, 270848, 296240, 338560, 412160, 473984, 541696, 592480, 677120, 824320, 947968, 1184960, 1354240, 1895936, 2369920, 2708480, 3791872, 4739840, 9479680, 18959360]

約数ペア:

[(1, 18959360), (2, 9479680), (4, 4739840), (5, 3791872), (7, 2708480), (8, 2369920), (10, 1895936), (14, 1354240), (16, 1184960), (20, 947968), (23, 824320), (28, 677120), (32, 592480), (35, 541696), (40, 473984), (46, 412160), (56, 338560), (64, 296240), (70, 270848), (80, 236992), (92, 206080), (112, 169280), (115, 164864), (128, 148120), (140, 135424), (160, 118496), (161, 117760), (184, 103040), (224, 84640), (230, 82432), (256, 74060), (280, 67712), (320, 59248), (322, 58880), (368, 51520), (448, 42320), (460, 41216), (512, 37030), (529, 35840), (560, 33856), (640, 29624), (644, 29440), (736, 25760), (805, 23552), (896, 21160), (920, 20608), (1024, 18515), (1058, 17920), (1120, 16928), (1280, 14812), (1288, 14720), (1472, 12880), (1610, 11776), (1792, 10580), (1840, 10304), (2116, 8960), (2240, 8464), (2560, 7406), (2576, 7360), (2645, 7168), (2944, 6440), (3220, 5888), (3584, 5290), (3680, 5152), (3703, 5120), (4232, 4480)]