20560925

素因数分解:

$5^2\times 7^1\times {\mathrm{11}}^2\times {\mathrm{971}}^1$

素因数の和:1010

約数の個数: 36

約数和(自身を含む): 32060448

約数和(自身を除く): 11499523

約数列:

[1, 5, 7, 11, 25, 35, 55, 77, 121, 175, 275, 385, 605, 847, 971, 1925, 3025, 4235, 4855, 6797, 10681, 21175, 24275, 33985, 53405, 74767, 117491, 169925, 267025, 373835, 587455, 822437, 1869175, 2937275, 4112185, 20560925]

約数ペア:

[(1, 20560925), (5, 4112185), (7, 2937275), (11, 1869175), (25, 822437), (35, 587455), (55, 373835), (77, 267025), (121, 169925), (175, 117491), (275, 74767), (385, 53405), (605, 33985), (847, 24275), (971, 21175), (1925, 10681), (3025, 6797), (4235, 4855)]