18548480

素因数分解:

$2^8\times 5^1\times {\mathrm{43}}^1\times {\mathrm{337}}^1$

素因数の和:401

約数の個数: 72

約数和(自身を含む): 45597552

約数和(自身を除く): 27049072

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 43, 64, 80, 86, 128, 160, 172, 215, 256, 320, 337, 344, 430, 640, 674, 688, 860, 1280, 1348, 1376, 1685, 1720, 2696, 2752, 3370, 3440, 5392, 5504, 6740, 6880, 10784, 11008, 13480, 13760, 14491, 21568, 26960, 27520, 28982, 43136, 53920, 55040, 57964, 72455, 86272, 107840, 115928, 144910, 215680, 231856, 289820, 431360, 463712, 579640, 927424, 1159280, 1854848, 2318560, 3709696, 4637120, 9274240, 18548480]

約数ペア:

[(1, 18548480), (2, 9274240), (4, 4637120), (5, 3709696), (8, 2318560), (10, 1854848), (16, 1159280), (20, 927424), (32, 579640), (40, 463712), (43, 431360), (64, 289820), (80, 231856), (86, 215680), (128, 144910), (160, 115928), (172, 107840), (215, 86272), (256, 72455), (320, 57964), (337, 55040), (344, 53920), (430, 43136), (640, 28982), (674, 27520), (688, 26960), (860, 21568), (1280, 14491), (1348, 13760), (1376, 13480), (1685, 11008), (1720, 10784), (2696, 6880), (2752, 6740), (3370, 5504), (3440, 5392)]