2154320

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{3847}}^1$

素因数の和:3867

約数の個数: 40

約数和(自身を含む): 5725824

約数和(自身を除く): 3571504

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 3847, 7694, 15388, 19235, 26929, 30776, 38470, 53858, 61552, 76940, 107716, 134645, 153880, 215432, 269290, 307760, 430864, 538580, 1077160, 2154320]

約数ペア:

[(1, 2154320), (2, 1077160), (4, 538580), (5, 430864), (7, 307760), (8, 269290), (10, 215432), (14, 153880), (16, 134645), (20, 107716), (28, 76940), (35, 61552), (40, 53858), (56, 38470), (70, 30776), (80, 26929), (112, 19235), (140, 15388), (280, 7694), (560, 3847)]