19051175

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{73}}^2$

素因数の和:180

約数の個数: 36

約数和(自身を含む): 28138824

約数和(自身を除く): 9087649

約数列:

[1, 5, 11, 13, 25, 55, 65, 73, 143, 275, 325, 365, 715, 803, 949, 1825, 3575, 4015, 4745, 5329, 10439, 20075, 23725, 26645, 52195, 58619, 69277, 133225, 260975, 293095, 346385, 762047, 1465475, 1731925, 3810235, 19051175]

約数ペア:

[(1, 19051175), (5, 3810235), (11, 1731925), (13, 1465475), (25, 762047), (55, 346385), (65, 293095), (73, 260975), (143, 133225), (275, 69277), (325, 58619), (365, 52195), (715, 26645), (803, 23725), (949, 20075), (1825, 10439), (3575, 5329), (4015, 4745)]