20000288

素因数分解:

$2^5\times 7^1\times {\mathrm{11}}^1\times {\mathrm{8117}}^1$

素因数の和:8145

約数の個数: 48

約数和(自身を含む): 49097664

約数和(自身を除く): 29097376

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 22, 28, 32, 44, 56, 77, 88, 112, 154, 176, 224, 308, 352, 616, 1232, 2464, 8117, 16234, 32468, 56819, 64936, 89287, 113638, 129872, 178574, 227276, 259744, 357148, 454552, 625009, 714296, 909104, 1250018, 1428592, 1818208, 2500036, 2857184, 5000072, 10000144, 20000288]

約数ペア:

[(1, 20000288), (2, 10000144), (4, 5000072), (7, 2857184), (8, 2500036), (11, 1818208), (14, 1428592), (16, 1250018), (22, 909104), (28, 714296), (32, 625009), (44, 454552), (56, 357148), (77, 259744), (88, 227276), (112, 178574), (154, 129872), (176, 113638), (224, 89287), (308, 64936), (352, 56819), (616, 32468), (1232, 16234), (2464, 8117)]