638291225

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{9397}}^1$

素因数の和:9450

約数の個数: 48

約数和(自身を含む): 978895680

約数和(自身を除く): 340604455

約数列:

[1, 5, 11, 13, 19, 25, 55, 65, 95, 143, 209, 247, 275, 325, 475, 715, 1045, 1235, 2717, 3575, 5225, 6175, 9397, 13585, 46985, 67925, 103367, 122161, 178543, 234925, 516835, 610805, 892715, 1343771, 1963973, 2321059, 2584175, 3054025, 4463575, 6718855, 9819865, 11605295, 25531649, 33594275, 49099325, 58026475, 127658245, 638291225]

約数ペア:

[(1, 638291225), (5, 127658245), (11, 58026475), (13, 49099325), (19, 33594275), (25, 25531649), (55, 11605295), (65, 9819865), (95, 6718855), (143, 4463575), (209, 3054025), (247, 2584175), (275, 2321059), (325, 1963973), (475, 1343771), (715, 892715), (1045, 610805), (1235, 516835), (2717, 234925), (3575, 178543), (5225, 122161), (6175, 103367), (9397, 67925), (13585, 46985)]