20392960

素因数分解:

$2^{10}\times 5^1\times 7^1\times {\mathrm{569}}^1$

素因数の和:601

約数の個数: 88

約数和(自身を含む): 56005920

約数和(自身を除く): 35612960

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, 2240, 2276, 2560, 2845, 3584, 3983, 4480, 4552, 5120, 5690, 7168, 7966, 8960, 9104, 11380, 15932, 17920, 18208, 19915, 22760, 31864, 35840, 36416, 39830, 45520, 63728, 72832, 79660, 91040, 127456, 145664, 159320, 182080, 254912, 291328, 318640, 364160, 509824, 582656, 637280, 728320, 1019648, 1274560, 1456640, 2039296, 2549120, 2913280, 4078592, 5098240, 10196480, 20392960]

約数ペア:

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