181237280

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{23117}}^1$

素因数の和:23146

約数の個数: 72

約数和(自身を含む): 498100428

約数和(自身を除く): 316863148

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 70, 80, 98, 112, 140, 160, 196, 224, 245, 280, 392, 490, 560, 784, 980, 1120, 1568, 1960, 3920, 7840, 23117, 46234, 92468, 115585, 161819, 184936, 231170, 323638, 369872, 462340, 647276, 739744, 809095, 924680, 1132733, 1294552, 1618190, 1849360, 2265466, 2589104, 3236380, 3698720, 4530932, 5178208, 5663665, 6472760, 9061864, 11327330, 12945520, 18123728, 22654660, 25891040, 36247456, 45309320, 90618640, 181237280]

約数ペア:

[(1, 181237280), (2, 90618640), (4, 45309320), (5, 36247456), (7, 25891040), (8, 22654660), (10, 18123728), (14, 12945520), (16, 11327330), (20, 9061864), (28, 6472760), (32, 5663665), (35, 5178208), (40, 4530932), (49, 3698720), (56, 3236380), (70, 2589104), (80, 2265466), (98, 1849360), (112, 1618190), (140, 1294552), (160, 1132733), (196, 924680), (224, 809095), (245, 739744), (280, 647276), (392, 462340), (490, 369872), (560, 323638), (784, 231170), (980, 184936), (1120, 161819), (1568, 115585), (1960, 92468), (3920, 46234), (7840, 23117)]