7982975

素因数分解:

$5^2\times 7^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{29}}^1$

素因数の和:81

約数の個数: 72

約数和(自身を含む): 13853280

約数和(自身を除く): 5870305

約数列:

[1, 5, 7, 11, 13, 25, 29, 35, 55, 65, 77, 91, 121, 143, 145, 175, 203, 275, 319, 325, 377, 385, 455, 605, 715, 725, 847, 1001, 1015, 1573, 1595, 1885, 1925, 2233, 2275, 2639, 3025, 3509, 3575, 4147, 4235, 5005, 5075, 7865, 7975, 9425, 11011, 11165, 13195, 17545, 20735, 21175, 24563, 25025, 29029, 39325, 45617, 55055, 55825, 65975, 87725, 103675, 122815, 145145, 228085, 275275, 319319, 614075, 725725, 1140425, 1596595, 7982975]

約数ペア:

[(1, 7982975), (5, 1596595), (7, 1140425), (11, 725725), (13, 614075), (25, 319319), (29, 275275), (35, 228085), (55, 145145), (65, 122815), (77, 103675), (91, 87725), (121, 65975), (143, 55825), (145, 55055), (175, 45617), (203, 39325), (275, 29029), (319, 25025), (325, 24563), (377, 21175), (385, 20735), (455, 17545), (605, 13195), (715, 11165), (725, 11011), (847, 9425), (1001, 7975), (1015, 7865), (1573, 5075), (1595, 5005), (1885, 4235), (1925, 4147), (2233, 3575), (2275, 3509), (2639, 3025)]