18877280

素因数分解:

$2^5\times 5^1\times {\mathrm{127}}^1\times {\mathrm{929}}^1$

素因数の和:1071

約数の個数: 48

約数和(自身を含む): 44997120

約数和(自身を除く): 26119840

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 127, 160, 254, 508, 635, 929, 1016, 1270, 1858, 2032, 2540, 3716, 4064, 4645, 5080, 7432, 9290, 10160, 14864, 18580, 20320, 29728, 37160, 74320, 117983, 148640, 235966, 471932, 589915, 943864, 1179830, 1887728, 2359660, 3775456, 4719320, 9438640, 18877280]

約数ペア:

[(1, 18877280), (2, 9438640), (4, 4719320), (5, 3775456), (8, 2359660), (10, 1887728), (16, 1179830), (20, 943864), (32, 589915), (40, 471932), (80, 235966), (127, 148640), (160, 117983), (254, 74320), (508, 37160), (635, 29728), (929, 20320), (1016, 18580), (1270, 14864), (1858, 10160), (2032, 9290), (2540, 7432), (3716, 5080), (4064, 4645)]