21365813120

素因数分解:

$2^7\times 5^1\times {\mathrm{19}}^1\times {\mathrm{1757057}}^1$

素因数の和:1757095

約数の個数: 64

約数和(自身を含む): 53765974800

約数和(自身を除く): 32400161680

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 64, 76, 80, 95, 128, 152, 160, 190, 304, 320, 380, 608, 640, 760, 1216, 1520, 2432, 3040, 6080, 12160, 1757057, 3514114, 7028228, 8785285, 14056456, 17570570, 28112912, 33384083, 35141140, 56225824, 66768166, 70282280, 112451648, 133536332, 140564560, 166920415, 224903296, 267072664, 281129120, 333840830, 534145328, 562258240, 667681660, 1068290656, 1124516480, 1335363320, 2136581312, 2670726640, 4273162624, 5341453280, 10682906560, 21365813120]

約数ペア:

[(1, 21365813120), (2, 10682906560), (4, 5341453280), (5, 4273162624), (8, 2670726640), (10, 2136581312), (16, 1335363320), (19, 1124516480), (20, 1068290656), (32, 667681660), (38, 562258240), (40, 534145328), (64, 333840830), (76, 281129120), (80, 267072664), (95, 224903296), (128, 166920415), (152, 140564560), (160, 133536332), (190, 112451648), (304, 70282280), (320, 66768166), (380, 56225824), (608, 35141140), (640, 33384083), (760, 28112912), (1216, 17570570), (1520, 14056456), (2432, 8785285), (3040, 7028228), (6080, 3514114), (12160, 1757057)]