6991985

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{127}}^1$

素因数の和:174

約数の個数: 48

約数和(自身を含む): 11440128

約数和(自身を除く): 4448143

約数列:

[1, 5, 7, 11, 13, 35, 55, 65, 77, 91, 121, 127, 143, 385, 455, 605, 635, 715, 847, 889, 1001, 1397, 1573, 1651, 4235, 4445, 5005, 6985, 7865, 8255, 9779, 11011, 11557, 15367, 18161, 48895, 55055, 57785, 76835, 90805, 107569, 127127, 199771, 537845, 635635, 998855, 1398397, 6991985]

約数ペア:

[(1, 6991985), (5, 1398397), (7, 998855), (11, 635635), (13, 537845), (35, 199771), (55, 127127), (65, 107569), (77, 90805), (91, 76835), (121, 57785), (127, 55055), (143, 48895), (385, 18161), (455, 15367), (605, 11557), (635, 11011), (715, 9779), (847, 8255), (889, 7865), (1001, 6985), (1397, 5005), (1573, 4445), (1651, 4235)]