18851840

素因数分解:

$2^{11}\times 5^1\times 7^1\times {\mathrm{263}}^1$

素因数の和:297

約数の個数: 96

約数和(自身を含む): 51891840

約数和(自身を除く): 33040000

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 128, 140, 160, 224, 256, 263, 280, 320, 448, 512, 526, 560, 640, 896, 1024, 1052, 1120, 1280, 1315, 1792, 1841, 2048, 2104, 2240, 2560, 2630, 3584, 3682, 4208, 4480, 5120, 5260, 7168, 7364, 8416, 8960, 9205, 10240, 10520, 14336, 14728, 16832, 17920, 18410, 21040, 29456, 33664, 35840, 36820, 42080, 58912, 67328, 71680, 73640, 84160, 117824, 134656, 147280, 168320, 235648, 269312, 294560, 336640, 471296, 538624, 589120, 673280, 942592, 1178240, 1346560, 1885184, 2356480, 2693120, 3770368, 4712960, 9425920, 18851840]

約数ペア:

[(1, 18851840), (2, 9425920), (4, 4712960), (5, 3770368), (7, 2693120), (8, 2356480), (10, 1885184), (14, 1346560), (16, 1178240), (20, 942592), (28, 673280), (32, 589120), (35, 538624), (40, 471296), (56, 336640), (64, 294560), (70, 269312), (80, 235648), (112, 168320), (128, 147280), (140, 134656), (160, 117824), (224, 84160), (256, 73640), (263, 71680), (280, 67328), (320, 58912), (448, 42080), (512, 36820), (526, 35840), (560, 33664), (640, 29456), (896, 21040), (1024, 18410), (1052, 17920), (1120, 16832), (1280, 14728), (1315, 14336), (1792, 10520), (1841, 10240), (2048, 9205), (2104, 8960), (2240, 8416), (2560, 7364), (2630, 7168), (3584, 5260), (3682, 5120), (4208, 4480)]