2638405

素因数分解:

$5^1\times 7^2\times {\mathrm{11}}^2\times {\mathrm{89}}^1$

素因数の和:130

約数の個数: 36

約数和(自身を含む): 4093740

約数和(自身を除く): 1455335

約数列:

[1, 5, 7, 11, 35, 49, 55, 77, 89, 121, 245, 385, 445, 539, 605, 623, 847, 979, 2695, 3115, 4235, 4361, 4895, 5929, 6853, 10769, 21805, 29645, 34265, 47971, 53845, 75383, 239855, 376915, 527681, 2638405]

約数ペア:

[(1, 2638405), (5, 527681), (7, 376915), (11, 239855), (35, 75383), (49, 53845), (55, 47971), (77, 34265), (89, 29645), (121, 21805), (245, 10769), (385, 6853), (445, 5929), (539, 4895), (605, 4361), (623, 4235), (847, 3115), (979, 2695)]