81571840

素因数分解:

$2^{12}\times 5^1\times 7^1\times {\mathrm{569}}^1$

素因数の和:605

約数の個数: 104

約数和(自身を含む): 224105760

約数和(自身を除く): 142533920

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, 280, 320, 448, 512, 560, 569, 640, 896, 1024, 1120, 1138, 1280, 1792, 2048, 2240, 2276, 2560, 2845, 3584, 3983, 4096, 4480, 4552, 5120, 5690, 7168, 7966, 8960, 9104, 10240, 11380, 14336, 15932, 17920, 18208, 19915, 20480, 22760, 28672, 31864, 35840, 36416, 39830, 45520, 63728, 71680, 72832, 79660, 91040, 127456, 143360, 145664, 159320, 182080, 254912, 291328, 318640, 364160, 509824, 582656, 637280, 728320, 1019648, 1165312, 1274560, 1456640, 2039296, 2330624, 2549120, 2913280, 4078592, 5098240, 5826560, 8157184, 10196480, 11653120, 16314368, 20392960, 40785920, 81571840]

約数ペア:

[(1, 81571840), (2, 40785920), (4, 20392960), (5, 16314368), (7, 11653120), (8, 10196480), (10, 8157184), (14, 5826560), (16, 5098240), (20, 4078592), (28, 2913280), (32, 2549120), (35, 2330624), (40, 2039296), (56, 1456640), (64, 1274560), (70, 1165312), (80, 1019648), (112, 728320), (128, 637280), (140, 582656), (160, 509824), (224, 364160), (256, 318640), (280, 291328), (320, 254912), (448, 182080), (512, 159320), (560, 145664), (569, 143360), (640, 127456), (896, 91040), (1024, 79660), (1120, 72832), (1138, 71680), (1280, 63728), (1792, 45520), (2048, 39830), (2240, 36416), (2276, 35840), (2560, 31864), (2845, 28672), (3584, 22760), (3983, 20480), (4096, 19915), (4480, 18208), (4552, 17920), (5120, 15932), (5690, 14336), (7168, 11380), (7966, 10240), (8960, 9104)]